im getting ready to start running used motor oil but i have a few questions before i do so.

What would be the max % of used oil i could run?

would filtering to 2 micron be good enough?

 

i did some more looking and found the answers to my questions

 

What did you find out?

 

Found that some people run up to 90% oil in the summer months, and filtering down to 2m should be good enough if it is filter several times.

 

I wouldn't run used motor oil or tranny fluid in these newer diesels. In the older ones I wouldn't be afraid to run used motor oil in the tank.

 

Let me ask you a simple question. Why do you have a two micron limit? It is known by fact that particles around 1 micron do the most harm.
This size rips out other particles and is called the Avalanche effect. You will find this information from the Mann+ Hummel filter company.

By the way: 2 micron is also the measuring limit. You get difficulties to measure smaller than two microns.
Do a search and inform yourself about tolerances in an IP or Injector. You will be amazed how tight they are.

 

Thanks for the info, i have a supply of 2m filters is why i asked about it. also im running this in the 12 valve

 

I have not run motor oil in my fuel.
But a friend of mine has been doing it for 2 years now in his 96 12v cummins. He runs a 50/50 mix. He has not had any issues other than the smell of exhaust is not pleasant. I do not know details about his filtering system.
My brother has also run a small amoount in his 92 on occasion.

 

thanks for all the info guys i bought some 1m filters for the final stage

 

Spoke with my friend Sunday who runs the motor oil. He said #1 make sure you give your oil a chance to settle out. This will eliminate most of the problems he has had. The raw motor oil should settle in a tank, then draw the best off the top portion to use for your mix.

Good luck...

Let us know if you have good or bad results....