Black diesel?
 

Ive ran a little of the stuff in my truck but havent ran any thing like half or anything. so whats a good mix and how is it on you truck.

Black Diesel? I'll bite. What is it? WMO?

If diesel is black, its usually thanks to algae. Not good.

i'm also intrigued... by black diesel do you mean something along the lines of bio fuels?

i also and very intrigued

Black diesel is used motor oil. I have heard guys burning as much as 25% without problems, I would filter it good though.

a got cha .. just never heard it called that before ... thats how we used to get rid of our motor oil ... lol ... we put it in our old prerunner ... lol ... we used to just dump it in tho lol ... plooms of smoke hahah

black diesel
 

Ya im talking about mixing oil and hydralic and automatic fluid, but ive heard of running it like fifty percent.

i have read there are additives in trans fluid you wouldnt want in your fuel system.

From what I have read transmission fluid will ruin injectors. So at that risk is it really worth it? Not to me, my injectors were spendy. I run 1 quart of two stroke oil to one tank of diesel. I would say just stick to used motor oil. Gear oil I dont know, i dont think that would be good either.

so what is the point of running used motor oil in the fuel. does it help, make it smoke, or just a easy way to dispose of it?:humm: