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General Information => Smoke Tales => Topic started by: maxfax on November 01, 2009, 10:01:51 pm

Title: What's the worst fuel milage you can get??
Post by: maxfax on November 01, 2009, 10:01:51 pm
I though I'd try something different..   It's always asked "How good of milage do you get", now let's see the other side..   Fuel leaks and mechanical failures don't count..   :P    I'm talking about crazy mods and heavy feet...   ;D

My personal worst was about 34mpg in an 81 N/A 5 speed with the governor mod....

Title: Re: What's the worst fuel milage you can get??
Post by: catlin_cava on November 02, 2009, 06:54:42 am
17 MPG. 1.9 with GTI transmission in a MK3. Straight pipe Exhaust.....Actually that was my Average MPG with that car ::)
Title: Re: What's the worst fuel milage you can get??
Post by: Smokey Eddy on November 04, 2009, 02:26:32 am
17?!?!?!?
My worst was 20 with my old cracked head. No compression meant it drank a lot of fuel.
They way it is now with the aaz head, 2.5 inch straight exhaust - split to in front of rear tires, gov, lots of fuel, boost pin at MAX i was getting between 28-35 and i was driving it like i stole it.
I'm thinking to reach 17 i need a bigger pump head!!! and a lift pump...
both things that are currently on my agenda :P ;)
Title: Re: What's the worst fuel milage you can get??
Post by: diesel smoke on November 05, 2009, 12:19:45 am
I can get 15MPG in the bus.  :P  :D But that's an old air cooled flat 4.  ;)

In the IDI I got something near 30 once with a lot of idling in the winter. In the TDI something in the high 30's, again, a lot of idling in the winter. :)
Title: Re: What's the worst fuel milage you can get??
Post by: catlin_cava on November 05, 2009, 02:56:44 pm
when your reving at 3500 to 4000 RPM at 110 lol
Title: Re: What's the worst fuel milage you can get??
Post by: theman53 on November 05, 2009, 07:06:27 pm
In the flat red bunny after the gov mod and fuel screw I would consistantly get 38MPG...it sucked. I think the pump was going out though.
Title: Re: What's the worst fuel milage you can get??
Post by: Syncroincity on November 05, 2009, 07:39:49 pm
If you're sitting still with the engine running, you're getting zero miles per gallon. :D
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on November 05, 2009, 11:06:59 pm
If you're sitting still with the engine running, you're getting zero miles per gallon. :D

I worked out something with a short test today.. with my 410k 81 running out of a graduated cylinder, at idle it burned 250ml in 20 minutes.. 12.5ml/minute OR 4.8ml every second. Those are some good numbers. So theoretically!!! you could idle for roughly 80 minutes on just one liter of fuel :) lol
Title: Re: What's the worst fuel milage you can get??
Post by: maxfax on November 06, 2009, 04:23:10 am
If you're sitting still with the engine running, you're getting zero miles per gallon. :D

I had a Mustang once upon a time that 0mpg was actually good... 
Title: Re: What's the worst fuel milage you can get??
Post by: clbanman on November 06, 2009, 12:22:16 pm
If you're sitting still with the engine running, you're getting zero miles per gallon. :D

I worked out something with a short test today.. with my 410k 81 running out of a graduated cylinder, at idle it burned 250ml in 20 minutes.. 12.5ml/minute OR 4.8ml every second. Those are some good numbers. So theoretically!!! you could idle for roughly 80 minutes on just one liter of fuel :) lol

Don't you mean .208 ml/second?
Title: Re: What's the worst fuel milage you can get??
Post by: Syncroincity on November 06, 2009, 09:00:14 pm
If you're sitting still with the engine running, you're getting zero miles per gallon. :D

I had a Mustang once upon a time that 0mpg was actually good... 

Haha, yeah, we used to have a Chrysler Cordoba (minus the Corinthian leather, unfortunately) with a 440 in it. It was more useful to measure gallons per mile. :P
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on November 07, 2009, 05:33:47 pm

Don't you mean .208 ml/second?

haha yes lol
Title: Re: What's the worst fuel milage you can get??
Post by: tSoG-84bit on November 08, 2009, 04:19:09 am
got about 34mpg, one time in my 04 TDI, but that was carrying two friends that weigh about 260 each, along with two sets of tools, each about 50 pounds, along with a set of 13" alloys, with tires, a cabby bumper, with tow bar setup. Oh yeah, and a rooftop clamshell, that had the rear beam, control arms, and all four struts for a rabbitGTI. I'm not gonna say exactly how fast our average speed was, but it wasn't slow.

We actually got about the same mileage when we bolted all the above mentioned parts to our race car shell, and towed it home.

First time I got less than 600 miles per tank... :( 
Title: Re: What's the worst fuel milage you can get??
Post by: gldgti on November 08, 2009, 08:45:23 pm
worst i've ever had was 35mpg... basically stock aaz with fuel screw wound a ways in. no extra boost, no other mods.

worst i ever got n/a was about 38mpg in a 1.5 n/a mk1.
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on November 20, 2009, 12:24:35 pm
i can get about 30 with a smoke screen behind me in my rabbit with an AUG
i can get about 30 if i baby the hell out of it in my gas GTI w/ the ACN

i cant justify keeping a gas engine in there, it has less power and gets worse mileage.
Title: Re: What's the worst fuel milage you can get??
Post by: rabbitman on November 21, 2009, 02:57:15 am
I'm down to 35mpg after compensating for the slipping odo. :(

I think it's due to the improperly functioning vnt-15 causing high backpressure for how much benefit it gives. arrrrrrg >:(
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on November 21, 2009, 02:38:33 pm
if you open your vaines up all the way, like ive been saying since you put it on there, you would have almost no back pressure. VNT turbos flow better than normal turbos.
Title: Re: What's the worst fuel milage you can get??
Post by: rabbitman on November 21, 2009, 04:20:28 pm
if you open your vaines up all the way, like ive been saying since you put it on there, you would have almost no back pressure. VNT turbos flow better than normal turbos.

That's how I had it for the first month or two, I got 4-5psi boost and high egts and LOTS of smoke. It also had less power than when it was NA :(.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on November 21, 2009, 05:31:11 pm
if you open your vaines up all the way, like ive been saying since you put it on there, you would have almost no back pressure. VNT turbos flow better than normal turbos.

That's how I had it for the first month or two, I got 4-5psi boost and high egts and LOTS of smoke. It also had less power than when it was NA :(.

Open them back up, and don't drive with your foot to the floor all the time. lol if you were making 5 psi how was it less powerful?
Title: Re: What's the worst fuel milage you can get??
Post by: rabbitman on November 21, 2009, 08:56:44 pm
Open them back up, and don't drive with your foot to the floor all the time. lol if you were making 5 psi how was it less powerful?

I have no idea, maybe it was in my head since I thought it would've had lots more boost/power ::).

That 5psi was only when it was floored so I could do it for a few seconds and the egt's would hit 1250F easy and sometimes 1300+F :o. I could drive with the egt's at 900F with less than 1psi and it was very slow, like cruising at 60mph and no power for hills. >:(
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on November 22, 2009, 11:35:29 am
your timing sounds super advanced or something. didnt you say it was spot on?

ive got my pump turned up way far, and it pours blackness. i can hold my car to the floor and not get the engine too hot. i dont have an EGT gauge, but every time my head comes off, the pistons and injectors look good every time.
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on November 22, 2009, 11:37:06 am
and another thing, when you open the vaines, with the turbo on the car, are you pushing the lever towards the ground, or towards the hood? cause towards the hood is open. and towards the ground makes boost at idle...
Title: Re: What's the worst fuel milage you can get??
Post by: rabbitman on November 22, 2009, 02:35:50 pm
and another thing, when you open the vaines, with the turbo on the car, are you pushing the lever towards the ground, or towards the hood? cause towards the hood is open. and towards the ground makes boost at idle...

My turbo is euro so it's backwards, the lever is directly between the head and turbo rather than by the firewall.

I hooked a rod onto the lever so I could easily operate it with the engine running and up=boost @ idle, actually I was able to rev it in neutral and get 10psi......that was LOUD under the hood!!
I've put it on hold for now, I just got too sick of re re relooking everything over :'(
Title: Re: What's the worst fuel milage you can get??
Post by: ThorAlex on November 26, 2009, 12:01:24 pm
89 vanagon 1.6td: About 24 mpg on the first tank after turning the pump up a little, about 1/4 was a long trip, rest was hard city driving. Got about 29mpg mixed driving before. Oh, and my tank leaks out a few liters after each fill up so it's probably a little better.
Title: Re: What's the worst fuel milage you can get??
Post by: gldgti on November 29, 2009, 07:32:54 am
ive got my pump turned up way far, and it pours blackness. i can hold my car to the floor and not get the engine too hot. i dont have an EGT gauge, but every time my head comes off, the pistons and injectors look good every time.

just curious, but just how often does the head come off? and why?
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on December 06, 2009, 03:52:08 pm
ive got my pump turned up way far, and it pours blackness. i can hold my car to the floor and not get the engine too hot. i dont have an EGT gauge, but every time my head comes off, the pistons and injectors look good every time.

just curious, but just how often does the head come off? and why?

the first time the head came off, i had to replace the headgasket, the second time i had to replace the block, and the 3rd time was to port and polish. mind you, thats in about 3 years time.
Title: Re: What's the worst fuel milage you can get??
Post by: ashleyroe on December 16, 2009, 11:28:49 am
i was getting like 5 mpg when i was driving with the pump 180° out  ;D  ::) :-[
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on December 16, 2009, 04:09:14 pm
it ran timed 180 out? i thought that was impossible. like the pump and cam were timed that far off and it still ran? wow.
Title: Re: What's the worst fuel milage you can get??
Post by: ashleyroe on December 16, 2009, 05:23:11 pm
it ran timed 180 out? i thought that was impossible. like the pump and cam were timed that far off and it still ran? wow.

unknowing it was 180 out the vw tech at my boyfriends old dealership actually moved all the screws enough that it ran.

the car wouldnt go past 55mph and smoked like no tomorrow (fuel dumping out the back).

but yes it did run.

i have actually have video of before and after the giles pump.
Title: Whats the worst fuel milage you can get
Post by: Nignick09 on December 17, 2009, 09:01:19 am
Ok what if you are on a boat/shore with rods but not actually in the water they pull up and ask for your licence and dont have one, considering you dont have your line in the water can they still fine you?
Title: Re: What's the worst fuel milage you can get??
Post by: clbanman on December 17, 2009, 12:07:32 pm
If you're getting horrible fuel mileage with your VW diesel, they let you off with a warning.  (Just to keep on topic.)
Title: Re: What's the worst fuel milage you can get??
Post by: rabbitman on December 17, 2009, 04:33:14 pm
I like to fly fish out the back hatch while getting good fuel mileage, if I wasn't catching fish I'd expect a ticket ::)

A little more on topic, I'm running with no turbo and a 2.5" exhaust, we'll see if my mileage goes up from the 34-37mpg.
Title: Re: What's the worst fuel milage you can get??
Post by: 745 turbogreasel on December 17, 2009, 05:09:16 pm
In a Mercedes SDL, I blew an injector line at 3 AM.
Since I was only 20 mi from my destination, I tanked up and hoped for the best.

Went through half a tank in 20 min :(
I think it works out to two MPG.
Title: Re: What's the worst fuel milage you can get??
Post by: catlin_cava on December 17, 2009, 06:05:08 pm
I AM THE WINNER!!!!!!

6.92 US MPG!!!

2004 Chev K4500 6.6L Duramax Diesel 6 speed transmission and a 18foot rollback deck ;D ;D

PS thats Highway lol
Title: Re: What's the worst fuel milage you can get??
Post by: veector on December 19, 2009, 07:47:14 am
Im getting anywhere between 30 and 35mpg in mine with a giles pump running at about 25% potential.  I do get carried away with soot clouds though ???
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on December 24, 2009, 08:30:41 pm
I AM THE WINNER!!!!!!

6.92 US MPG!!!

2004 Chev K4500 6.6L Duramax Diesel 6 speed transmission and a 18foot rollback deck ;D ;D

PS thats Highway lol

you were doing something wrong then. duramaxes are WAY WAY more efficient than 7 mpg.
Title: Re: What's the worst fuel milage you can get??
Post by: catlin_cava on December 24, 2009, 09:22:21 pm
I AM THE WINNER!!!!!!

6.92 US MPG!!!

2004 Chev K4500 6.6L Duramax Diesel 6 speed transmission and a 18foot rollback deck ;D ;D

PS thats Highway lol

you were doing something wrong then. duramaxes are WAY WAY more efficient than 7 mpg.

Nope thats my beast. 3 Ton Rollback truck. The Truck is a Big, and it takes alot of fuel and power to get it up to speed. and 3/4 of the time I got something on my bed and I'm booting it on the highway.
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on December 29, 2009, 03:50:26 pm
that is ridiculous..

7 mpg out of a duramax.
Title: Re: What's the worst fuel milage you can get??
Post by: maxfax on December 29, 2009, 04:56:21 pm
That is quite a bit of truck for the size of the engine... 
Title: Re: What's the worst fuel milage you can get??
Post by: burn_your_money on December 30, 2009, 05:01:33 pm
Worst mileage I have gotten was 5.9l/100kms. I was pretty mad about that one too
Title: Re: What's the worst fuel milage you can get??
Post by: catlin_cava on December 30, 2009, 05:51:32 pm
That is quite a bit of truck for the size of the engine... 

I'll Take a picture of my truck tomorrow if its not too cold out...-20F in the wind todya
Title: Re: What's the worst fuel milage you can get??
Post by: boji55 on December 30, 2009, 06:58:09 pm
I get 19 mpg with a close ratio GTI 16v gear box fuel screw on max and turbo on i dont know what psi and straight exhaust my top speed is 140 km at 4350 rpm i keep it usually at about 120 km  on the high way with 3 passengers and lots of luggage and my tires are 185/65/15 
Title: Re: What's the worst fuel milage you can get??
Post by: maxfax on December 30, 2009, 11:32:35 pm
19mpg out of a VW, WOW!   
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on December 31, 2009, 03:45:23 pm
wow. i didnt know you could push that much fuel through a VW engine safely without something burning down. i have a close ratio trans also, but have 3.67 final drive. pretty sure yours is probably 3.94. but thats not going to make a 10 mpg difference all by its self. i had 2-3 people in my car all the time, and i still got over 30 mpg. and i was grossly exceeding the speed limit and all that stuff too. how do you get 19 out of a vw without breaking the law?
Title: Re: What's the worst fuel milage you can get??
Post by: catlin_cava on December 31, 2009, 06:08:21 pm
that is ridiculous..

7 mpg out of a duramax.

So I'm supose to get the same MPG as a regular Truck with a 6.6....Not with that truck

(http://i734.photobucket.com/albums/ww344/calin_cava/p_00118.jpg)
Title: Re: What's the worst fuel milage you can get??
Post by: Rabbit on Roids on January 01, 2010, 11:45:09 am
that is ridiculous..

7 mpg out of a duramax.

So I'm supose to get the same MPG as a regular Truck with a 6.6....Not with that truck

(http://i734.photobucket.com/albums/ww344/calin_cava/p_00118.jpg)

ok, i totally understand now.
Title: Re: What's the worst fuel milage you can get??
Post by: Smokey Eddy on August 24, 2010, 02:54:07 pm
Just got 19.0469393 MPG in my AAZ.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on August 24, 2010, 08:52:33 pm
Love your mathematical skills ED :P What does my fuelly say? Dunno how it says 4.4L/100km... thats a little low.. Its getting like 48-50mpg though :)
Title: Re: What's the worst fuel milage you can get??
Post by: honda_is_the_best on August 25, 2010, 12:07:31 pm
17?!?!?!?
My worst was 20 with my old cracked head. No compression meant it drank a lot of fuel.
They way it is now with the aaz head, 2.5 inch straight exhaust - split to in front of rear tires, gov, lots of fuel, boost pin at MAX i was getting between 28-35 and i was driving it like i stole it.
I'm thinking to reach 17 i need a bigger pump head!!! and a lift pump...
both things that are currently on my agenda :P ;)

looks like you almost got to 17mpg with the AAZ Ed..
Title: Re: What's the worst fuel milage you can get??
Post by: Smokey Eddy on October 24, 2010, 06:01:21 am
Yeah you're right hahahah
Well its running a freaking ton of a lot better now. all broken in - fantastic mileage and i still drive it like i stole it most of the time.
except for highway driving. i have a great transmission for highway driving. just easy cruising. i think its the same as my TDI. about 2,100rpm or 2,200rpm at 100km/hr.

but i've been burning the tires off lately.
I can't calculate the mileage unfortunately because the speedo gear is lost in the transmission somewhere.
Title: Re: What's the worst fuel milage you can get??
Post by: Smokey Eddy on October 24, 2010, 06:02:01 am
 BTW 4.4 is nuts Jeremy.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on October 24, 2010, 10:08:28 pm
EXACTLY! i think fuelly lies. I enter accurately the amount of fuel i put (to the tens of liters and right on the price) in to the amount on the trip-o-meter. Some may be only $15 at a time, but I always go to halfway down the orange when I fuel again..

So there is no reason it should give false results.. I am entering everything to the T.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on October 24, 2010, 10:19:18 pm
its more like 4.9-5.1 ;) 49-51mpg
Title: Re: What's the worst fuel milage you can get??
Post by: gldgti on November 02, 2010, 03:16:22 am
the worst milage I have ever got in my aaz was when I first picked it up (it was on 131,000km at the time). Worst I ever recorded was 6.7l/100km.

Now, if i really push it, I can get as bad as 5.9l/100km.... but not any worse. That was a recent tank full when I did a dyno run and a lot of "take it for a spin after a tune" type drives.

I necessarily do a lot of highway km's... thats likely why its always pretty good. But now, my average is around 5.2-5.5l/100km.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on November 17, 2010, 10:24:15 pm
Gotta love that ish man, driving like a raped ape, and still under 6L/100km's loool
Title: Re: What's the worst fuel milage you can get??
Post by: gldgti on November 18, 2010, 01:23:00 am
forgot to mention, my last 130,000km's have been on 100% biodiesel.
Title: Re: What's the worst fuel milage you can get??
Post by: casanis on December 05, 2010, 02:26:23 pm
So far my worst is 52.7 MPG  ;D

(http://www.fuelly.com/smallsig-metric/47648.png) (http://www.fuelly.com/driver/Casanis/jetta)
Title: Re: What's the worst fuel milage you can get??
Post by: smokin_fun on December 08, 2010, 11:09:31 pm
92 1.6 td jetta, giles aggro pump, t3, 27psi max, .75 fifth 3.67 final, straight pipe..... 5.8l/100km best (fully loaded with books from nelson to victoria avg. speed 130+) worst 8l/ 100km's with winter gas everywhere in third driving like a total prick!

93 audi 90q with 3 leaking fuel lines 60km/45L (yeah you read that right). After fuel lines fixed 11l/100km if ya take it real easy. way less if ya don't. Too poor to find out how bad it can be! That said whole car cost less than my giles pump. Giles pump was a better deal though!

86 f-250 6.9 na 12l/100km's everywhere all the time no matter what.
Title: Re: What's the worst fuel milage you can get??
Post by: MJF on January 30, 2011, 01:22:59 am
The worst i've ever got with idi, was the latest tank with my 80 quattro. 8,6l/100km. Lots of drifting on ice, crawling in snow, performance tests etc ;D This car is not for fuel economy, its just for fun. And fun it is ;D
Title: Re: What's the worst fuel milage you can get??
Post by: scrounger on February 26, 2011, 11:45:35 pm
First post here:
I have had my 86 Jetta TD for about 7000 miles. The best was 45 mpg and the worst 37. Headed back up I hope.

The car has about 250000 mile on it and runs very nice. Have had it  95 mph once.
Title: Re: What's the worst fuel milage you can get??
Post by: truckinwagen on February 28, 2011, 08:26:00 pm
I just did 18MPG!!!!!

thats with the charger pushing 18PSI continuously and driving foot to the floor for 150 miles(with a big tin can on the roof)

hope to get it back up a bit with the boost bypass, better rolling tires, lowering, and taking off the tin can ;D

-Owen
Title: Re: What's the worst fuel milage you can get??
Post by: grape ice cream on April 05, 2011, 11:15:03 pm
I got 35 MPG on my first tank of fuel in a 84 NA with no mods  :o
Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on April 06, 2011, 10:58:26 am
i just got about 28 on my last tank.. i was on the boost ALOT..
Title: Re: What's the worst fuel milage you can get??
Post by: maxfax on April 12, 2011, 04:47:37 am
  0 MPG..   My odometer took a crap again..   ;D
Title: Re: What's the worst fuel milage you can get??
Post by: macka on May 20, 2011, 08:43:40 am
15 mpg but there were fueling issues  :-[
Title: Re: What's the worst fuel milage you can get??
Post by: nathan_b on May 21, 2011, 02:46:10 am
I was complaining to a friend with a 1.8t passat about getting 36mpg with my current fueling and driving style.

He just looked me cold in the eyes and said. You're such a bastard.

haha.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on June 16, 2011, 12:50:54 am
I was complaining to a friend with a 1.8t passat about getting 36mpg with my current fueling and driving style.

He just looked me cold in the eyes and said. You're such a bastard.

haha.

Its more expensive to drink beer than to drive my car.. I complained about getting 650km out of my tank (mk1, 40L) and had a friend hate on me lol.
Title: Re: What's the worst fuel milage you can get??
Post by: silvertdvw on October 13, 2011, 08:11:52 pm
The worst mileage i've ever gotten was when I was towing 2 dirtbikes and a carrier on the roof I got 27mpg on the highway cruising at about 110km\h. Now with the AAZ head I usually get around 38-40mpg city and 45highway, best ever was 52.  

(http://i562.photobucket.com/albums/ss69/silvertdvw/jettatowing.jpg)
Title: Re: What's the worst fuel milage you can get??
Post by: markdelevo on October 13, 2011, 09:31:56 pm
worst 14 mpg with vr6 eurovan but it was full loaded.
Title: Re: What's the worst fuel milage you can get??
Post by: vanbcguy on November 09, 2011, 05:36:53 pm
Worst I ever got was 10.52L/100km - 22.36 MPG.  That was when I was moving so I had a box trailer on the back of the car for a week or so.  Lots of driving in traffic with a lot of weight.

(http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc4/155587_10150108547866427_730036426_7932560_4101968_n.jpg)
Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on November 10, 2011, 12:12:41 pm
dont have a picture, but i just hauled 1150 lbs of scrap with my 86 GTI, dunno what kinda mileage i got, but im gonna guess it was 15-20 mpg.. usually gets 30-35 mpg..
Title: Re: What's the worst fuel milage you can get??
Post by: vwsb1974 on August 02, 2012, 10:26:24 am
i get 47 without a/c and 32 with a/c city
Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on August 02, 2012, 01:31:53 pm
been getting a pretty religious 45 mpg in the Jetta...
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on August 02, 2012, 11:43:35 pm
been getting a pretty religious 45 mpg in the Jetta...

I'm up there too with the M-TDI and boosting 12psi cruising ;)
Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on August 03, 2012, 01:24:40 pm
been getting a pretty religious 45 mpg in the Jetta...

I'm up there too with the M-TDI and boosting 12psi cruising ;)

i boost about 8psi on the highway, and 12 on the freeway..

seen it go clear up to ~40psi the other day..
Title: Re: What's the worst fuel milage you can get??
Post by: catlin_cava on October 04, 2012, 09:28:28 pm
I think I set a new record for worst efficiency on VWDiesel ;D

1.78MPG :D thats what i was driving and thats only 10,000lbs of Cargo

(http://i734.photobucket.com/albums/ww344/calin_cava/90013778-2F4D-4FE6-B3C7-A5A2C9729DFD-4745-0000013239A247AC.jpg)
Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on October 06, 2012, 02:42:32 pm
thats a super bulky 10k lbs tho...

the bulk is what made it suck, im sure..
Title: Re: What's the worst fuel milage you can get??
Post by: srgtlord on October 08, 2012, 12:47:57 pm
13mpg hwy in a 1992 gasser golf with a burnt out distributor cap and rotor.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on October 08, 2012, 10:51:04 pm
Worst? 6.7L/100km on the last tank.. With the new 11mm pump on there, and my foot on the smoke pedal A LOT.

Boost hits hard in 2nd gear ;D right above 1500 too.
Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on October 11, 2012, 08:00:21 pm
13mpg hwy in a 1992 gasser golf with a burnt out distributor cap and rotor.


WOW...

i didnt even get that bad of mileage with over a ton of scrap behind my GTI..

and i had to pull hills and drive a windey road..
Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on December 13, 2012, 07:58:58 pm
Never seen less than 36 in any of mine.  42 long time rolling average in the 81 before I moved, the NA-AAZ 82 did 38 average between OK and CA last June, haven't driven it much sense.  Seems low but it was kinda cruddy and weighed down, not to mention running hard with the AC on most of the way.  And altitude, without a turbo.

Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on December 17, 2012, 04:21:21 pm
well, i can report back that my JTD gets better economy turning 2450 revs @ 60mph, rather than 3000 revs @ 60 mph..
Title: Re: What's the worst fuel milage you can get??
Post by: ORCoaster on December 17, 2012, 10:01:38 pm
17.859 at 2450 versus 16.58 at 3000?  Come on man, let lose with the numbers that matter.  It is almost Christmas, surely you can gift us with that little bit of knowledge.

Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on December 18, 2012, 12:57:20 am
well, i can report back that my JTD gets better economy turning 2450 revs @ 60mph, rather than 3000 revs @ 60 mph..

My 88 gets the best mileage @3200 rpm (117 km/h or 72mph).
Title: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on December 18, 2012, 02:19:47 am
well, i can report back that my JTD gets better economy turning 2450 revs @ 60mph, rather than 3000 revs @ 60 mph..

My 88 gets the best mileage @3200 rpm (117 km/h or 72mph).

not alot of places to go 70+ mph for any distance, without getting a ticket..
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on December 18, 2012, 09:03:21 am
Haha you need to move to Ontario lol.
Title: Re: What's the worst fuel milage you can get??
Post by: ORCoaster on December 18, 2012, 11:52:24 pm
Ah heck you just need to get into traffic coming out of Portland at rush hour.  It is either 8 or 80.  It seems that the man allows you to get about 6 or 7 over before pulling you over on I 5.  So when the posted speed is 65 you can push it up to 70 easy but be careful with those next couple. 
Title: Re: What's the worst fuel milage you can get??
Post by: TylerDurden on December 19, 2012, 07:54:09 am
Ja, not too surprising in the US to see traffic on a 65mph regulated road regularly travelling >70mph.  In Michigan, 70mph regulated roadways frequently carry 80mph traffic. 

As for fuel economy... I'm sure my worst was when I towed a Vanagon with my Westy. I can't recall, but it was probably under 17mpg.
Title: Re: What's the worst fuel milage you can get??
Post by: CRSMP5 on December 19, 2012, 05:01:54 pm
hell... mi with 55mph limit was 80-90... 20 years ago....

(http://www.crsmp5.com/cali_2012/pic/broken.jpg)

22mpg pulling car back at 1 point...

best of my trip... 6400 miles... i5 from san fran to la... pulling car at that... 34mpg... only cause the whole cali 55max speed towig law...

what ive found is past 55mph the milage drops quick... 30-35 at 70 is commo... around town 40+... 70-80 like i saw lots of out west.. 28mpg..

but big square box.. its air flow losses..

(http://www.crsmp5.com/cali_2012/pic/r9.jpg)
Title: Re: Re: Re: What's the worst fuel milage you can get??
Post by: Rising on January 15, 2013, 05:33:11 pm
hell... mi with 55mph limit was 80-90... 20 years ago....

(http://www.crsmp5.com/cali_2012/pic/broken.jpg)

22mpg pulling car back at 1 point...

best of my trip... 6400 miles... i5 from san fran to la... pulling car at that... 34mpg... only cause the whole cali 55max speed towig law...

what ive found is past 55mph the milage drops quick... 30-35 at 70 is commo... around town 40+... 70-80 like i saw lots of out west.. 28mpg..

but big square box.. its air flow losses..

(http://www.crsmp5.com/cali_2012/pic/r9.jpg)

What is that beautiful piece of machinery? Is that a mail truck? Do you have a thread for this guy? That is simple incredible.
Title: Re: What's the worst fuel milage you can get??
Post by: CRSMP5 on January 15, 2013, 05:40:36 pm
really....  ;D  burnt toast in sig.... thread here on fourm for build and all... but my pages got more pics...

its 1 of approx 500 vw powered grumman kubvan... used mk1 firewall forward pedals/suspention... firewall back most have dasher rear suspention.. under 100 have truck leaf style which gives tons more room in back... mine is that version... ive seen 4 in person of the "leaf style" most are the other...

why important... bunkbeds i built for that trip for multi campers... no room in the other style..
Title: Re: Re: What's the worst fuel milage you can get??
Post by: Rising on January 17, 2013, 09:25:42 am
That is awesome! Sorry I didn't see the signature.. I use tapatalk on my phone to check the forums so no signatures :(

I'll sign on to a computer and find the build thread! That thing is beautiful. Sorry to detour!

Worst gas mileage yet was my last tank at 43... best has been 47. I want to see 50 ;D
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on January 17, 2013, 09:43:43 pm
I want to see 50 ;D

Pump up those tires, empty the trunk and run a synthetic oil. Should get you there.
Title: Re: Re: What's the worst fuel milage you can get??
Post by: Rising on February 01, 2013, 11:22:31 am
I tried raising my tire pressure up from the 30 psi I have it at to 44ish which is shy of the tire manufacturers Max psi. The ride was unbearable. So I went back down after a week or so. Maybe I could split the difference. (The 195s I'm running probably don't help economy ;D )

Admittedly I have been helping my friend out by hauling his stuff (and him) around after his house burned down. So that could be the cause of my latest tank at 40 MPG...

What weight synthetic should I run?

Im also running a td block and injectors with a n/a pump and no turbo. Could there be some negative effects of that setup? Should I retard timing some because of the td injectors? Add my vnt? Turn down my pump?

Sent from my ThunderBolt using Tapatalk 2
Title: Re: Re: What's the worst fuel milage you can get??
Post by: R.O.R-2.0 on February 05, 2013, 02:25:05 am
I tried raising my tire pressure up from the 30 psi I have it at to 44ish which is shy of the tire manufacturers Max psi. The ride was unbearable. So I went back down after a week or so. Maybe I could split the difference. (The 195s I'm running probably don't help economy ;D )

Admittedly I have been helping my friend out by hauling his stuff (and him) around after his house burned down. So that could be the cause of my latest tank at 40 MPG...

What weight synthetic should I run?

Im also running a td block and injectors with a n/a pump and no turbo. Could there be some negative effects of that setup? Should I retard timing some because of the td injectors? Add my vnt? Turn down my pump?

Sent from my ThunderBolt using Tapatalk 2

you need MORE timing with TD injectors, being that they have HIGHER brake pressures than n/a injectors..

get that VNT on there, it will give you more MPG..

what is your engine timed to? 1mm?
Title: Re: Re: What's the worst fuel milage you can get??
Post by: Rising on March 05, 2013, 11:22:29 am
Man I missed this thread. Tapatalk has been not notifying me lately.

Anyway. I am running a lot of advance. Maybe too much. Which is why I considered backing it off a bit. I took to heart vince waldons statement that the worst thing that can happen with too much advance is bad power and bad fuel economy, evidenced by white smoke.

Currently my timing is set at 1.37mm. After I got the timing close I knew the turbo injectors were gonna be different so since it was running rough I just kept advancing it little by little till it started running good. Then checked timing again. I don't use the cold start mechanism and the car starts flawlessly.

But now after seeing my efficiency over the past few tanks I think I might need to back it down to the 1.20 range or so. . .

Hopefully I don't get flamed too hard for timing by ear ::) ;D

Also: when I put the vnt on my plan was to set timing back to 1.05 and tweak from there.

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Title: Re: Re: What's the worst fuel milage you can get??
Post by: vanbcguy on March 06, 2013, 05:36:24 pm
Man I missed this thread. Tapatalk has been not notifying me lately.

Anyway. I am running a lot of advance. Maybe too much. Which is why I considered backing it off a bit. I took to heart vince waldons statement that the worst thing that can happen with too much advance is bad power and bad fuel economy, evidenced by white smoke.

Currently my timing is set at 1.37mm. After I got the timing close I knew the turbo injectors were gonna be different so since it was running rough I just kept advancing it little by little till it started running good. Then checked timing again. I don't use the cold start mechanism and the car starts flawlessly.

But now after seeing my efficiency over the past few tanks I think I might need to back it down to the 1.20 range or so. . .

Hopefully I don't get flamed too hard for timing by ear ::) ;D

Also: when I put the vnt on my plan was to set timing back to 1.05 and tweak from there.

Sent from my ThunderBolt using Tapatalk 2

Definitely sounds like you have too much timing on there... Are you using NA or TD injectors?  Either way, on an IDI anything over about 1.05 is too much!!

There's absolutely nothing wrong with timing by ear and I don't think anyone (or at least too many folks) on this board would flame you for it.  There IS something wrong with someone trying to "line up the marks" and thinking that they have somehow timed their engine correctly - doesn't work on a diesel.  Likewise you really need to have the correct tools for setting the cam timing, even if your "correct" cam lock is just a chunk of metal you stick in there with a few feeler gauges.  

Anyhow if you are running worn injectors on a worn injector pump using fuel that is different from what VW was expecting then there really isn't an appropriate "factory" timing spec available any more.  You start with the factory numbers and tweak from there.  Or just get it running without the factory timing and make adjustments.  "By ear" is about the only way you can time it - too many marbles, back off the timing.  Billowing white smoke and poor starting? Advance the timing...  Small increments make big changes.

If you really are running at 1.37mm on an IDI with a stock pump and injectors then you are way way way advanced.  I doubt you will find anyone on here with a TD pump and injectors that is running more advanced than 1.15mm.
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on March 06, 2013, 06:04:05 pm
I once had somebody accuse ME of hill-billy tuning.. (timing by ear)..

I don't use an injector pump or cam shaft lock, simply because I do not have too. Also been accused of hill-billy tuning because of that.. lmao

Jive with me for a second, If the timing process were needed to be SO PERFECT then why is the crank shaft allowed to move freely during the process?? Why does it not have a lock? ;)
Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on March 06, 2013, 09:07:21 pm
Didn't the TDI get a crank lock?  Little toothed dealy with a bolt?  I put a belt on a PD TDI a few years ago and remember envying the auto-tensioner and the locking tools.
Number of other small diesels I've come across have crank locking tools.  The IDI VW was pretty basic, even for it's era.  I attribute it to it's gasser heritage.  
I've got a design paper from way back when somewhere, I want to say it was on Roger Brown's site, is interesting reading.  
The early VW system is highly imperfect, the crank movement makes precise timing almost impossible.  It isn't hillbilly when the basic procedure is effed from the start.  
We get along as best we can, these motors are forgiving.  I always figured one of these days I'd have a locking mechanism machined to fit it the trans plug hole and fit into a receiving point
in the flywheel somehow or another.  It's pretty low on the to-do list though.
Title: Re: Re: What's the worst fuel milage you can get??
Post by: Rising on March 06, 2013, 09:08:22 pm
I'm using TD injectors and block with a n/a pump and no turbo. Im definitely with the school of thought that the timing has some room for adjustment. But I just don't know enough to not use a cam and IP lock haha.

However if I'm way off in my timing is it possible that I'm not measuring that correctly? I cranked it back till the numbers stopped and then forward till tdc and read the number.

But more to the point. Is there a sweet spot for gas mileage with pump timing? I know slightly advanced timing is used by a lot who are going for performance increases what about mileage?

Either way I'm going to back timing off a tad until it looses some marbles then see how mileage is affected.

Do you tune by ear with the car running or incrementally? I've been doing it incrementally...

Sent from my ThunderBolt using Tapatalk 2
Title: Re: What's the worst fuel milage you can get??
Post by: theman53 on March 06, 2013, 09:11:16 pm
I once had somebody accuse ME of hill-billy tuning.. (timing by ear)..

I don't use an injector pump or cam shaft lock, simply because I do not have too. Also been accused of hill-billy tuning because of that.. lmao

Jive with me for a second, If the timing process were needed to be SO PERFECT then why is the crank shaft allowed to move freely during the process?? Why does it not have a lock? ;)
The crank doesn't need locked as the cam and IP are holding it in place...although it would be nice if it had a lock to hold it perfect to help. Hillbilly :D
Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on March 06, 2013, 09:15:08 pm
Like..

(http://i193.photobucket.com/albums/z214/skudmissile_2007/CIMG2635.jpg)
Title: Re: What's the worst fuel milage you can get??
Post by: CRSMP5 on March 06, 2013, 10:33:20 pm
just do not be like bbob's old tdi's owners fix it man... use long 8mm bolt thru 1 of 4 holes as lock... one day bbob will post that pic..

like i try to tell lots of people.. even the pd.. got those tools too.. but mine uses 2 of 4 8mm bolt holes vs belt teeth..

the little titty between the 2 bolt holes, 7 o'clockish area, lower 8mm hole lines up with oil pan bolt head 99% of time.. others have crank snout issues..

the pd style tool remade to use that oil pan bolt = work on all vw 4 bangers since 75...
Title: Re: What's the worst fuel milage you can get??
Post by: 8v-of-fury on March 06, 2013, 10:35:09 pm
The crank doesn't need locked as the cam and IP are holding it in place..


You never had the crank rotate when you tighten the belt then eh? lol
Title: Re: What's the worst fuel milage you can get??
Post by: ORCoaster on March 06, 2013, 11:34:04 pm
The crank rotates so that techs can earn their keep.  If everyone could just lock and load the belt in place why would they need to come to the d'lar?  I would like to see something that goes in the tranny hole myself and stay away from the front end of the engine.  More accessible and would allow checking final tighten easier.  Maybe something that grabbed the teeth somehow. 

Just have to have some skill at it and that is again why we share our tips and pics.
Title: Re: What's the worst fuel milage you can get??
Post by: 745 turbogreasel on March 07, 2013, 12:12:31 am
I made one of these up in a jiffy.  sorry for the big pic, I didn't take it.
(http://i304.photobucket.com/albums/nn179/dluinstra/Crank-with-lock.jpg)

Title: Re: What's the worst fuel milage you can get??
Post by: theman53 on March 07, 2013, 08:18:51 am
The crank doesn't need locked as the cam and IP are holding it in place..


You never had the crank rotate when you tighten the belt then eh? lol
Not since I know how to do it correct. The slack has to be in the tensioner side of the belt and then you are correct, it doesn't move.

Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on March 08, 2013, 12:25:14 am
SOB's move all the time on me.  Books always say where the tension should be, small motors still seem to manage to move the crank somehow.
I check and re-check and haven't effed one up yet out of dozens, but it sure was nice on that TDI to know it was locked in and not worry about it.

Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on March 23, 2013, 10:46:24 pm
Speaking of which, several of the long T handle tools in this kit I bought ages ago are for locking the crank on small 4cyl diesels, that I presume
aren't sold in the US.  I think we got shafted for a long time with nothing but little VW's, much as I love em they are kinda cheap-o's in a lot of ways.
(http://img834.imageshack.us/img834/4963/20130319113344.jpg) (http://imageshack.us/photo/my-images/834/20130319113344.jpg/)

Uploaded with ImageShack.us (http://imageshack.us)
Title: Re: What's the worst fuel milage you can get??
Post by: libbydiesel on March 29, 2013, 01:27:45 pm
The crank does not move one iota when tensioning the belt unless you are doing the process wrong.  Plain and simple.  If it does move when you tension the belt, then your cam timing will be retarded when the engine is running, especially if your "solution" to the movement is to rotate the crank CCW back to TDC...  
Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on March 29, 2013, 03:39:43 pm
Ideals and exacts don't happen as often as we might wish.  A simple crank locking method, which others had and VW finally does now, removes that possible error from the equation.
I've done belts with no locks at all, no biggie(to me) but it isn't my preference, I've also seen people manage to screw up when EVERYTHING has a lock.
When I've had them move, which isn't often but it's happened, it wasn't when tensioning the belt at all, it was usually something dumb like leaving the car in gear and not setting
the e-brake or chocking the wheels and leaning on it.  I caught it when I double checked the timing mark like anyone should, but it wouldn't have happened if there was a crank lock. :)
I've had some that it took effort to move the crank, some that were presumably pretty tired that one could move the crank with two fingers on the gear after they sat and
bled down a bit.  It varies, mistakes are made, we devise systems to minimize them.

Guns ought not to need a safety either, people should keep there little sausage fingers off the switch till it's time, but they don't, so most of them do have a safety.
It's easy to say "if you do x right you don't need y" but it's ignoring reality. 
Just one of those things in my opinion...
And I am a fan of ideals and "right".

Title: Re: What's the worst fuel milage you can get??
Post by: libbydiesel on March 29, 2013, 10:14:13 pm
A crank lock is a band-aid to remove a symptom but that band-aid does nothing to address the actual problem in your procedure and worse yet, can mask the problem.
Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on March 29, 2013, 10:47:03 pm
A crank lock is a band-aid to remove a symptom but that band-aid does nothing to address the actual problem in your procedure and worse yet, can mask the problem.  If you don't have the car in neutral or up on jack stands, you can't do a timing belt correctly.  Heck, how can you even rotate to TDC in the first place?  If the crank moves when tensioning the belt, then you did not load the slack into the tensioner area like it is when running.  If you don't do that correctly, then a crank lock will just mask the issue and your cam timing will still be retarded when running.  When I tension the belt, the crank never moves at all.  I have confirmed this a multitude of times.  

Like I said, it isn't tensioning the belt when the crank moves, you are absolutely right on that.

And I get to TDC like most guys in a shop or driveway doing it alone, pull plug on trans, put in gear, roll car till at TDC, from drivers front fender so you can see the mark, unless
I'm lucky enough to have someone come watch for me or roll the crank with a ratchet, but that is the exception rather than the rule.
I've occasionally put a ratchet on the crank bolt and tried to lean over but it's annoying, maybe my arms are too short.  Been doing it this way fifteen years and I dunno how
many belts.  If you do this stuff for a living, it's easy to forget how things differ when one isn't as well equipped.  I've never used jack-stands for a t-belt, one under and a floor
jack on the pass side if doing water pump, but that's it.  I'm still skinny. :)

Ideals man, ideals.  Sometimes a band-aid is a good thing.  VW and others seem to think so too.

I enjoyed the crank locking tool being present on that TDI I did a few years ago, didn't have to roll the car, and was able to lock it and forget about it.   
Didn't enjoy taking so much *** off to get to the belt, but hey.

Title: Re: What's the worst fuel milage you can get??
Post by: TylerDurden on March 30, 2013, 09:19:40 am
Back to the OP/OT...

I installed a 1V engine into my 85/86 TD (after replacing its HG). IP from an 89NA getting 50mpg. First couple of tanks netted 35mpg highway. (Excessive nailing at all but WOT on highway.) Timing set to 1mm.

Compression is good, Lifters are noisy. IP internal pressure not known yet.

Backed off timing to .88mm, 38mpg but still got excessive nailing.

Popped the injectors: break-pressures varied widely and two sprayed streams. Swapped in the injectors from the original engine: all spray well, break pressures ~145bar. Timing at .84mm... Now getting 42-44mpg and a hint of nailing.


Backed off timing to .81mm yesterday... smooth running and no nailing. I'll report back with mpg after a couple of tanks.

(Next operation will be lifters or IP pressures, but will wait to see what the effect the timing change makes.)
Title: Re: What's the worst fuel milage you can get??
Post by: wolf_walker on March 30, 2013, 12:10:33 pm
Back to the OP/OT...

I installed a 1V engine into my 85/86 TD (after replacing its HG). IP from an 89NA getting 50mpg. First couple of tanks netted 35mpg highway. (Excessive nailing at all but WOT on highway.) Timing set to 1mm.

Compression is good, Lifters are noisy. IP internal pressure not known yet.

Backed off timing to .88mm, 38mpg but still got excessive nailing.

Popped the injectors: break-pressures varied widely and two sprayed streams. Swapped in the injectors from the original engine: all spray well, break pressures ~145bar. Timing at .84mm... Now getting 42-44mpg and a hint of nailing.


Backed off timing to .81mm yesterday... smooth running and no nailing. I'll report back with mpg after a couple of tanks.

(Next operation will be lifters or IP pressures, but will wait to see what the effect the timing change makes.)

Pretty much a text book process.  Advance it till it nails as much as you can tolerate and enjoy.
The lifters will help, as they are often worn and lazy, pump pressure might, don't go crazy with it. 
Title: Re:
Post by: Renax on June 17, 2014, 04:04:51 am
T3 Bus with 1.6TD with 10mm pump head and 3mm camplate lift, got little under 30mpg, but that was not really adjusted at all, and the smoke was so bad that people driving behind had no chance to identify the car, could only see 2 red lights... now i'm getting around 40.

Worst i've had was 220hp G60 passat, or 190whp G60 Golf.
Both got 17mpg at worst. But i miss the power sometimes..

T3 Syncro 2.1 FF 112hp burned about 30 liters in 15minutes, but that was only once...

Sent from my cheapchinaphone using Tapatalk

Title: Whats the worst fuel milage you can get
Post by: ronaldmoolo on April 12, 2019, 02:28:57 pm
Any concern with using a cardboard box for the smoke adapter - could it get hot enough to cause a fire?
Title: Re: What's the worst fuel milage you can get??
Post by: libbydiesel on April 12, 2019, 07:07:43 pm
Yeah if you use cardboard for the smoke adapter it will not only get hot enough to cause a fire, it will get so hot that the super-heated plasma will act as a mutagen for your DNA and you will turn into a fungus. 
Title: -
Post by: MerlesGak on October 20, 2021, 02:42:53 am
but seriously, the worst pantera song I can think of would have to be ...

hmm, Im trying to think of a Bad one and nothing seems to come off the top of my head.

Uplift doesnt seem that inspired, compositionally that is. But it still ***ing rocks.
Title: Re: What's the worst fuel milage you can get??
Post by: ORCoaster on October 20, 2021, 10:52:23 pm
I don't remember reading the reply from Libby back when.  Made me laugh. 

Once you are turned into a fungus they will stuff you in a bag at the natural food store and sell you by the pound to goats.