Straight Pipe / burning waste motor oil

[opofus]

I Burned 3 gals of WMO this tank. It made my engine run quieter. What is the max % I can run in my tank.

I also did a muffler delete and I got about 5 more lbs of boost.

[GO OVRIT]

I don't know that there are any safe % numbers. I've heard of people running 50% and others say not to run it at all. The main thing is to make sure its clean and not out of an engine "on the way out" leaving traces of bearing material.

[fasttalker83]

I wanna know if you get the oil from a resturant how are you filtering out the salt?????? it cant be done its to small to filter and it will get into a pump and injectors is it really that safe to be running?

[CumminsPride]

WMO is waste motor oil, not waste vegetable oil.

As for safe % to run, I say none. 2cycle or bio if you want lubricity, otherwise you're looking for some sort of failure.

[Ace]

There's plenty of benefit from runnning WMO, long as it's clean. Even if not, all it can do is clog up your filter and wear out the lift pump faster. OBTW - it's free. Or at least you already got the use you paid for out of it. One man's trash...

Oil doesn't wear out. It gets dirty. The dispersants, anti-coagulants, anti-foaming, viscosity improver, EP and other chemicals the oil companies add to come up with their different products gets depleted. The purely lubriscious nature of the base stock is always there. It's just no good to run in an engine after that other stuff is gone and it's loaded with dirt, soot, combustion byproducts, water, fuel, whatnot.

You can avoid 90% of the particulate debris (mostly soot in diesel WMO) by just letting it sit for a couple weeks undisturbed and settle out. Pour the clean stuff off the top taking care not to slosh it around while doing so and you are good to go. If you are an extremeist like me, you could even get fancy and filter it with something like this:

http://stuff.is-a-geek.net/PhotoAlbum/C ... ilter3.jpg

My WMO (what comes from the engines and equipment I run and maintain) has nothing but possibly a very small amount of soot in it to begin with, because I run bypass oil filtration systems on all the vehicles. I've only had the drain plug out of the CTD once since I got it over two years ago. The last oil analysis done in Oct 07 came back stellar with 16k miles on the sump and about 12 quarts makeup in the 18 mo. period. The makeup oil was for filter changes (~6qt a pop) on the Gulf Coast filter:

http://stuff.is-a-geek.net/PhotoAlbum/C ... CDT_20.jpg

That's opposed to the 36 quarts most people would have used doing full oil changes at typical intervals over that period. What I did take out got run through the VE to keep it nicely juiced and give a few extra MPG.

'Spose I could have just gave it back to the oil companies for recycling. But thats' three gallons of fuel I didn't have to buy - just from the CTD. Alot more, considering the Cummins is burning everything except some of the gear oil that comes out of all our vehicles now. The thought of giving it back to the oil companies just sticks in my craw while I'm standing there at the pump paying close to $5 a gallon for some of their products.

Sorry for the rant.

[opofus]

I plan to get my oil from lube joints, and filter it to 1 micron, I also plan to burn about 5 gallons to 1 tank of fuel.

[sdstriper]

I believe Cummins says up to 20% wmo blend.

[roxxx]

These trucks are old !!! But Wow you will risk a Cummins on waste oil !!! kinda funny considering I have seen so many posts about fuel additives???? Marvel mystery Ams soil Stanadyne .people will and probably have come to blows about the benefit and negatives’ yet you all would dump G#d only knows what in to you motor to save a few dollars , Yes Cummins saz 20% waste oil . BUT If you look closely they also have very High tech filters for this process ….. now think about it I am changing my oil every 5000 K…..
To dump it back it to my motor un filtered or filtered and even then. very suspect to how clean, the average citizen can get it clean compared to a say the military or Any heavy funded organization who saz they can burn that much waste oil in there fleet

[Ace]

Kinda funny Cummins came up with a sophisticated system to do the very same thing automatically for you:

https://quickserve.cummins.com/info/qso ... tinel.html

They must have no clue.

[burnt_servo]

the last couple of days i've been rebuilding vw injectors .

did some tests by swaping out the diesel in the pop tester , and adding canola oil , canola / diesel ( 50/50 and 30/70 percent ) and waste 15-40 and 15-40 with diesel ( 50/50 and 30/70 percent ) .

by watching the spray patterns and raising the pop presure 2200 psi to 2500 psi , there should be no problems what so ever with running 30 canola , or waste motor oil , assuming it has been filtered properly .

once the 50 percent level is hit , no matter what the pop presure , you are no longer getting a mist but rather just a stream of liquid .

what i've seen , seems to agree with what i've been hearing from others , not to go over 1/3 when mixing veg oil or waste motor oil , and running it to the injection pump cold .
heating the oil would change that .

the only advantage the cummins injector has is , multiple holes in the tip ( vw is single ) and another 1000 or so psi in pop presure .

[Featherman]

Can one use synthetic oil as an additive to the tank of fuel?

[Ace]

The primary difference between true synthetics, hydrocracked syns and convenional oils is the refinement of the base stock into a more uniform molecular structure, or in the case of PAOs, uh, I forgot. It's just a more expensive, different, better oil. Burns the same.

[iwantaturbo]

i run wmo in my 90 cummins. in the summer i even get up to 50% in the winter i keep it down to 5 gal per 20 gals. but in the summer ill put 10 gals in drive home and put 10 gals of oil in it. i got lots of oil so i use it.

its not bad at all if you keep it under 30 -35% when you get near or over 50% it smokes and starts to smell like an old chevy gas motor Razz

i did this for 2 years in my powerstroke and never had a problem and cummins parts are cheaper so i have no problems doing it in it!!!!!

oh the more oil i put in it the better i can hear my kids in the cab!!!! it does make it less noisey.

[super-duty]

How are you guys filtering it? And do you think it would work in a 24V in a small percentage? I own a 93 and 01. The 01 is straight piped also.

[greasemonkey]

I've been thinking about setting up a 50 gallon drum in the shop to do put drain oil in and use a transfer pump with a small, maybe 1 micron filter, to transfer it either into a barrel with a pour spout or just pump it straight into a 5 gallon fuel can. especially because we get a lot of drained turbine oil from the aircraft we work on, no sense throwing that stuff out!