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Engine Specific Info and Questions => IDI Engine => Topic started by: meatwagon on May 29, 2007, 06:45:57 pm

Title: average mileage
Post by: meatwagon on May 29, 2007, 06:45:57 pm
Hi guys i got a 97 IDI just wondering what your avg mileage is, this isnt a contest, or anything, im just wondering if what im getting is average or below.  Ive been told both.  I get 680km/ tank wich is about 50-53L fill, thats mostly city,  THe thing is last summer i was getting a lot more, went from over 760/tank down to 550 this winter, now im back at 670.   I even drove from calgary to van, and got over 900kms and still have 5L left.  so ywah. whats your average per tank?  thanks
Jamie
Title: average mileage
Post by: Mark(The Miser)UK on May 29, 2007, 06:53:01 pm
That's poor mileage. Get rid of that gasser engine and get a Quantum TD :shock:
Title: average mileage
Post by: CoolAirVw on May 29, 2007, 07:18:17 pm
I get 40 mpg (american gallon not imperial) in summer and 38 mpg with winter fuel on my 85 Jetta 1.6 turbo diesel.  Thats with a very worn out engine.  I know because I pulled it recently and found 24 thousandths piston to cylinder clearance with one broken oil ring and worn out valves.

Maybe I'll get better mileage after rebuild.  

I guess you have a 1.9?
Title: average mileage
Post by: burn_your_money on May 29, 2007, 08:16:43 pm
I usually get 800km/43L but if I try can get 950-1000/43L. I've developed a mean fuel leak that I haven't been able to correct yet and have lost about 200kms/tank :evil:
I drive a mk2 TD and there is usually about 100-200 pounds of crap in the trunk

At best that works out to 55 MPG (US) I have a goal to hit 75 MPG but we will see.

Engine has 450xxx kms on it too :D
Title: average mileage
Post by: lyeinyoureye on May 29, 2007, 09:50:46 pm
I pretty much hung around the 45mpg (American) mark. I got it up to 53mpg by keeping it at ~50mph during a highway round trip, and with ~1000lbs of people in the car managed to get ~38mpg during lots of holiday stop and go traffic. I figure I can break into the 70mpg range w/ ease, but going past that may take some unorthodox finagling.
Title: average mileage
Post by: Jetta Fan on May 30, 2007, 04:59:44 am
I've got a 97 Jetta with the 1.9 AAZ and I get an average of 50-51 mpg (imperial).

I have stretched it to 55 mpg a few times last summer, but there was no fun in that. If I keep the engine speed down, shift below 3000rpm etc it goes up, but I've been driving it hard (shifting around 3600-4000rpm) and doing 70-75mph on the highway.
Title: average mileage
Post by: meatwagon on June 01, 2007, 01:46:50 am
yeah i dont have a gasser, 1.9 td IDI, 260k Kms, im going to a gtg here in langley , hopefully someone can give me some pointers on my problem.  I think it may be my injectors? i really have no idea.  THanks guys,


Jamie
Title: average mileage
Post by: Justin on June 01, 2007, 06:52:56 am
with my 1.9 NA TDI (turbo is in the mail) I just got no less than 46 mpg with a mix of 55mph and lots of stoplights city driving

this is a brand new engine with a Giles pump and some of vwmike's .22mm injectors with the timing set to 1.00 mm, and the cable shifted 5 speed from a 98 beetle TDI

once this thing is broken in and turbo is on I want to squeeze 60 mpg plus out of this.

later
Justin
Title: average mileage
Post by: meatwagon on June 01, 2007, 10:42:33 am
what is a giles pump?
Title: average mileage
Post by: jimfoo on June 01, 2007, 12:08:02 pm
It is the pump to beat all pumps, with the special treatment to make lots of power. I don't have one, but I have only heard great stuff about them. You can find him under the vendors section.
Title: average mileage
Post by: johnboy on June 01, 2007, 03:03:07 pm
I ussally get around 40mpg (imperial), more on long  steady runs. Not too bad for a 168k engine pulling along a heavy Passat Estate!
Title: average mileage
Post by: 91 ECO on June 01, 2007, 04:22:24 pm
I get around 40mpg (American) on a well worn engine and a shorth 5th gear.
Title: average mileage
Post by: bvolks73 on June 01, 2007, 07:55:23 pm
I'm only getting 40 mpg (US). I used to get around 50. But that's still almost twice as much as I'm getting with my automatic gasser.
Title: average mileage
Post by: Justin on June 02, 2007, 10:27:07 am
the giles pump runs great on my NA TDI, but I have the Giles turbo pump and I need the turbo installed before I realize the full potential of it since the fuel is limited right now since it was calibrated for boost.

I love the 1.9 TDI I really think that to stall this thing it would require a lot of brake and then dropping the clutch, needless to say I love the torque of the 1.9

later
Justin
Title: average mileage
Post by: Black Smokin' Diesel on June 03, 2007, 11:14:36 am
Right now I can't say for sure with all the new parts I've put on but I've put 20L (there was about 5L left in the tank) in and used 1/3rd of it and I'm at 130km so far. I estimate around 300-350km with 25L which is about 7 to 8 liters per 100km. It's 50/50 between city and highway driving.
Title: average mileage
Post by: RabbitJockey on June 03, 2007, 12:22:00 pm
i used to consistently get 40mpg while beating the *** out of my jetta
Title: average mileage
Post by: meatwagon on June 05, 2007, 12:03:11 am
just an update i got way better milage on this tank, 755kms on 52L, if my math is right thats 37.75 mpg? i could be wrong.. running b40 bio...
Title: average mileage
Post by: Red Rabbit on June 05, 2007, 04:20:23 am
755 kms on 52 litres is 42 mpg (imperial).......
Title: average mileage
Post by: Mark(The Miser)UK on June 05, 2007, 05:20:16 am
Quote from: "Red Rabbit"
755 kms on 52 litres is 42 mpg (imperial).......


POOOOOR! My gasser 'Q' will do that on a run.

Upper 40's [imp] town 2 to 3 mile runs and touching 60mpg [imp] on an interstate 65 to 75mph for my diesel 'Q'

These Golf/Jettas don't seem to be as economic as their light weight should produce IMO :shock:
Title: average mileage
Post by: Helliouse on June 05, 2007, 10:46:55 am
I just did a test on my Jetta 90 TD 305000k
613km 46L
about 7.5L/100km, which to me seems rather crappy. I have turned down fueling as i had it up, am still not impressed.

With this tank I am going to try turning down the starwheel to see if I am getting to much fuel on boost.
I will report more then

If any one has any ideas on how to increas fuel milage that would be great.
I plan on doing a Fresh Air intake, and 2.5down pipe with 2.5 or 2.75 tail pipe here one weekend. Well that is after my new son gets out of the hospital :( and we are back home... :)