Used oil for fuel?

Any thoughts on running used and filtered truck oil in my 91 4.2 please?
Seriously! Any one run hho on a diesel before?Tap Tap lol:jawdrop:

Look up black diesel.. I ran it for a solid 6 months. Awesome idea to start with it but I personally think it needs to be run in a turbo. WMO (waste motor oil) has a lot more energy than diesel. But needs a lot more air to get maximum burn.
In 6 months in my 91 TD42 NA it's blocked up the exhaust quite a bit..
But in bogmasters 4.2 turbo has been running for years..


Kallen Westbrook
Owner of
Westy's Accessories

Thanks Westy,im pretty sure i can get an endless supply of WMO and am reading stuff in a GM forum ATM with people split about 50/50 on the subject but i figure if can figure out how to make an oil centrifuge? and run it at about %50 i should be pretty right and am heaps keen to try???

Yea I ran just a straight filter system down to .5 micron, and blended 50/50 with diesel.

As I said I think it's best to run with a turbo as a NA doesn't get enough air to allow the oil to burn properly..

And yes, any town has an endless supply if your willing to pick it up..


Kallen Westbrook
Owner of
Westy's Accessories

Yup I have a bit sitting here, couldn't be stuffed takin it to the tip :)

Do your research, there are heaps of pros and cons..
Some pros-
Saves fuel, lubricates mechanical pumps and injectors, makes the engine heaps quieter...
Some cons-
Messy as hell, can build up carbon, does smoke a bit more, can clog injectors.

It did like it, but as I mentioned I wasn't getting a full burn, and it was blocking the exhaust.
I was running a water/meth system aswell.


Kallen Westbrook
Owner of
Westy's Accessories

There is a thread on *cough* Mypatrol4x4 forum. Some links and heaps of info.



Tipsy-tap