Quote:
Originally Posted by chknfkr
the old cummins multifuel engines will run on used engine oil as thick as 15w40, no filtering, heating, or mixing necessary. Whats more impressive is these engines which are commonly found in M35(deuce), M39(5-ton), and M809(5-ton) series military trucks will still maintain their rated output running on used oil.
I would for sure filter it, you are litterally at the previous engines mercy as to when you catch a couple fillings.
that systems filtration is made to work with used oil on the fly.
It's against the law and a very BIG fine if you get caught.
I happen to know a bit about this... I'm about to do this to a diesel datsun i own. Note that it is not dot legal. What we do is mix about five gallons of diesel with a 55 gallon drum of used oil. If you can get used hydraulic oil there is no need to mix in diesel. By mixing in diesel it thins it out enough that all the metal and crap sink to the bottom. Then i leave the bottom foot the drum alone. Meaning my suction pipe in the barrel doesnt go in all the way. Thats the easy part...
Now you actually need two fuel delivery systems. One of diesel and one for the oil. You'll also need to.plumb in two three way actuators. One for supply and one for the return. On the oil delivery what I'm doing to warm up the oil is im running it through a dodge trans cooler. It will have coolant running througto it too.
even with todays current standards you can run 7-8 percent used oil....perfectly legally....thats right from the epa. theres potential issues about road tax, which is why i was looking into some alternative fuel designations....for home made fuel...i dont mind paying the tax for road work... this will vary from state to state. weeks of calls to clueless nothing to get clear answers never produced any....basically for here, if your running alternative means...enjoy the tax break for being creative on the recylce end of things...your one of the few.
my engine is great at 30 percent and in some places is legal as well....as it is an acceptable way to reclaim/recycle. big thing with boats
my ol mechanical engine is truly an oil burner. as is any diesel....just newer diesels will suffer from clogged emmissions componants.
my psd runs better on atf then my idi. mpg stays about the same
they run about the same on motor oil...lose 2-5 mpg depending on mix, and slightly down on power.....dont really smoke bad unless extended idling....or normal wot for a few brief moments.
but really what i want to say is it is impossible, and will destroy your truck instantly and cost a million dollars to fix....so just leave all my local trans shops alone.....i will make sure thier oil is disposed of properly...thank you
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