Putting used engine oil in tank, Good Idea????

[jtanguay]

Bummer, as I probably have 40 gallons of drained oil. Although maybe in low ratios just every now and then it might not be too bad. I've used red diesel in my garage heater for a long time. No way I was paying $6/gallon for kerosene.

if you bought a filter that would remove the soot from the oil you should be ok.

[zukgod1]

Bummer, as I probably have 40 gallons of drained oil. Although maybe in low ratios just every now and then it might not be too bad. I've used red diesel in my garage heater for a long time. No way I was paying $6/gallon for kerosene.

if you bought a filter that would remove the soot from the oil you should be ok.

X2.

I built a cool little filter set up. Pumps from approx 4" off the bottom of the barrel then goes through a spin on type filter to a seperate holding container. Then to the car. I also dump it into the container through a shop rag and paint strainer.

I've cut the ratio back a bit as I just dont like the smell. Approx 15% at this point or 2 gal pr 14 gal fill up.

[jimfoo]

I have filters. I just haven't gotten around to putting them together. I even have a pump so I don't have to wait for ever. Since I used to do water treatment, we would always remove those dinky "whole house" 2x10 filters and throw them away, so I snagged 3 housings and bought some of our spare 1 micron filters as we never used them for anything. I figured a 20-30 micron to a 5 micron to a 1 micron.

[zukgod1]

I have filters. I just haven't gotten around to putting them together. I even have a pump so I don't have to wait for ever. Since I used to do water treatment, we would always remove those dinky "whole house" 2x10 filters and throw them away, so I snagged 3 housings and bought some of our spare 1 micron filters as we never used them for anything. I figured a 20-30 micron to a 5 micron to a 1 micron.

That would be perfect, I was thinking and still am about using a system just like that.

Put it together and send me some pics.

[MacGyver]

Over the years I've read about numerous farmers & truckers burning waste oil mixed with diesel.
The consensus in Farm Show Magazine articles (http://www.farmshow.com/) is ~10% works well, 15% max before sooty deposits become evident.

Basically it's a way to get rid of some surplus used oil with the side benefit of displacing a small amount of fuel, not a fuel replacement/cost reduction. At least that's the way they were treating it.

[saurkraut]

is ~10% works well, 15% max before sooty deposits become evident.

Huh, ya don't say..... :roll:

[FWD.MOTION]

Once a while ago I put a 1.6Ltd intake on a n/a 1.5L engine and ran the block oil breather to the intake pipe on a cold air set up

oil was pissing big time into the engine via the intake which I thought would be the same as the stock intake pressure, turns out oil was being sucked in by the cold air pressure!!?

anyways to make a long story short (mind that story because it's mearly to explain how I ran over 50-50 mix oil and fuel in my engine) The oil entered into the intake and burned but burned dirty ie: soot and deposits of all kinda but she was a whole lot quicker... Like alot quicker but when I let off the gas around 3500rpm in 5th to a slowing grocery getter in front, the engine just ran away no control of speed and I had to nutrel and turn the key in fear not to roast her

guess im just adding in my rant of experiences... 10% mix maybe but dont get too carried away because I noticed a hang in rpms and major soot, Im sure its messing injection timing

[Dakotakid]

Ryan, a bit of delay: diesel stop.com

Sort of related...I hear so many of you guys talk about run-aways and I always laugh (now, anyways....but not that day!)

My old vo-tech school engine in an '85 ran away one day while I was revving it up while leaning over the grille. This babe took off so fast....I thought I could block the air horn with my hand. Just about lost the entire surface of skin off my palm!!!!!!
Ran around and sat down and in a panic....put it in fourth and dumped the clutch. Metallic interlude it was....clutch plate springs exploded and really shot-peened the flywheel on "atmospheric re-entry."
Anyway, in the corner of my shop I have this flywheel which resembles a UFO that spent way too much time crusing the asteroid belt!!!!!
These days.....it's funny!!!!

[MacGyver]

Ok so just for curiousity I tried ~28% used oil mix this week, car (97 TDI) runs exactly the same. Mind you it could blow up tomorrow, but I digress...

And now with current fuel prices you can buy things like this:
http://www.mybiofuelbuddy.com/Master_Kit.html

I know nothing good or bad about this setup, but what exactly is 'bio' about used engine oil & petroleum based fluids...? :?

[Duster 5.9]

not to be off target but what about those waste oil burners how do they burn 100% oil and no soot? lots of garage's use those around here.

[zukgod1]

not to be off target but what about those waste oil burners how do they burn 100% oil and no soot? lots of garage's use those around here.

Yes they do but we are talking about 2 different kinds of combustion here.

Oil burning garage heaters use a spark igniter suck as a spark plug where the oil is sprayed past in a fine mist causing flame thus heat.

In our engine there is no spark only heat from compression.

I've been running oil in varying ratios for years, best ratio I've came up with is less than 20%. I'm usually around 10-15% myself.

[andy2]

My dad runs 50/50 (diesel/used oil) in his 95 passat AAZ with 70 liter tank :shock: .It works quite well starts fine and makes more power.I had to turn the fuel screw down as the idle was too high.It goes in unfiltered and not premixed.We have an electric feed/supply pump on his car so it forces the mixture through the OEM fuel filter with no issues.The fuel filter has to be a couple years old now and has engine oil inside but still flows enough fuel to make 18 psi boost with minimal smoke I might add :twisted: .

[Shavedrabbit]

i just started running about 20% oil in with the diesel

runs the same in every way so far...

[andy2]

My dads car had some issues the other day and he had to limp the car back home.He did not MIX the oil with fuel so it plugged the fuel filter.We have an electric feed pump to move the fuel/oil however we are now going to install a fuel pressure gage to monitor the feed pump pressure and fuel filter restriction.

The new filter we installed was an older type without the fuel return heater fitting (pre 1990)??. Using the heater type filter allowed fuel pressure to bleed into the return side as the filter became restricted.

If you install a feed pump and dont already have the older style fuel filter then get one.

If you don't have a feed pump and pressure gage I would advise anyone to be conservative with the mix.20% oil might be a safe mix without a feed pump.Be prepared and carry a spare fuel filter with you and some fuel to fill the filter and tools to change the filter and bleed the system.                                                                                                          
If you have issues with power diasppearing then change the filter.

[Hermann]

My question is - Why? What are the benefits of running dirty oil through the combustion chambers in a perfectly good diesel. We spend a lot of time filtering our petroleum products at source and on the vehicles - what possibele good could this do for an engine?

What are the emissions results?

Just seems counter intuitive to an old gear head like myself.