I had a mechanic tell me you can mix used engine oil with fuel. Has anyone else ever heard or done it?
LB7: Burn used engine oil?
- Thread starter FF34PIP
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that might do ok on an old 12 valve or 7.3 but I personally would not do it on a common rail engine
in the older trucks but not in a Dmax fuel system. You might get away with a gallon on a full fill up but why the hell would you wanna put that crap in a expensive truck....?
Thats kinda what I thought, just wanted to get another opinion. I've seen on some of the other threads that peaple are using 2 stroke oil, what do you think?
new clean oil is way different than dirty oil... why would you want to risk it? there are always traces of metal in used oil, i would not want to risk one little piece getting through on my truck.
Doesn't or hasn't fingers ran just about everything through his or am I maybe thinking of superdiesel? I wouldn't do the used oil in a cr truck but have run, with good results, some new 2-cycle. About one 20oz bottle to fill up. Quietened down the injectors n fprv n overall engine noise.
Even new oil isn't all that clean and fuel isn't that clean neither.
I think its well proven fuel quality isn't the main culprit with LB7 injector failures.
The fuel lubricity test done on DP showed that used oil hurt fuel lubricity. I don't remember how much, but it does. I don't think your going to hurt anything by running it really.
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super diesel
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I've done it for the last 4 years in my Dmax (Prefiltered). I also ran a 2K trip on nothing but used motor oil, trans fluid and hydrolic oils in 05 (some here may still remember). Key is, prefilter.
I've run some used oil mixed in diesel in my old mechanical injected Benz. No problems, in fact might be a tad quieter.
Not a chance in hell on my truck or anything half new. In fact if i could get premium diesel for the truck, i would.
Not a chance in hell on my truck or anything half new. In fact if i could get premium diesel for the truck, i would.
what are you filtering it down to?
i have a buddy with an old benz and he will run it on anything he finds, and you're right it does make it a bit quieter.
i've run a mix of diesel, trans fluid and 2 stroke through mine w/o any issues. it did make it quieter as well.
Haha, yup the old benz arnt too picky. I usually only do burn used oils when the budget it tight. Ill put about anything in it long as its not too nasty. No brake fluid lol. Lot of people have killed benzes from bio or wvo but usualy they did it wrong. Dunno if id ever mix more than 50% but so far the old girl dose fine heck it burns a bit of its own oil. Kinda fun to dump in a gallon of atf and drive for free
super diesel
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I use to run 50/50. But now I only run about 25/75 diesel. I filter it down to 2 mic (several times).
I was curious about this as I run straight veggie oil about 80% of the time(diesel only to warm up and shut down)
I know I can filter it, but how about synthetic oils, would they mess things up?
I know I can filter it, but how about synthetic oils, would they mess things up?
super diesel
<<<< Under Pressure
You get white smoke with synthetics unless your running it hard at the pulls, track or some form of comp. It's doesn't like to burn very clean at typical DD uses.
my 97 7.3 lived on atf and wmo filtered with a 4 and 2 mic filter setup though, always wondered if wmo would work in a lb7? after running through a 2mic filter it should be cleaner then deisel at the pump. would hate to trash a set of injectors though.
The psd ran good just after a tank or two it would start smoking but also had stg 1s in it as well
The psd ran good just after a tank or two it would start smoking but also had stg 1s in it as well