Originally Posted by Old300D

And everyone has one. But cold vegetable oil is NOT GOOD FOR THE ENGINE. You get incomplete burning, injector and combustion chamber deposits, and sump oil dilution. Keep doing it and your rings will start sticking and the issues snowball. Mercedes are tougher than most just because of the prechamber design, but I've run WVO cold (in the summer), and Forced Induction is right -- the engine has difficulty starting and idling. The car is not designed for poorly combusting, sticky fuel.