Quote Originally Posted by Wulf202 View Post
If you pick up the right truck with the right motor and the right filters it'll run in most diesels without ill effects other than fuel gelling at low temps.

Duramax and earlier chevys
7.3l and earlier fords
5.9 and earlier dodges


Been researching this for several years.
I have heard of it just never witnessed. the main thing i would be worried about is that waste oil has all the crap floating around in it. it can not be good for the fuel pumps or nozzles. just my initial thoughts. do not know nearly as much about the little guys. I have seen what bio does to decently tough N14 injectors. which had the option for a oil recycle system that pumped it from the pan to the tanks.