I've heard conflicting information about using Bio Diesel in certain engines. I have a 2012 RAM Laramie 2500 6.7 , 160K the truck runs perfectly I purchased it a little over a year ago just before the prices of Diesel went crazy to tow a new Fifth Wheel Camper around the country (we wanted to be full time until the fuel prices changed our budget). That journey is now done and I'm buying a house. I want to keep the truck and sell the camper, but want to get information about Bio Diesel use in this year truck? It's all stock as far as I can tell. I don't know the policy about deleting discussion here ? So I'll wait for a comment about that. I was thinking of making my own Bio Diesel but don't know anything about how it would harm my engine? Is there anything I can do to make it safe to run in my truck? Or do.i need it stick to blends? If deleting topics are allowed I am considering it not for crazy power but just reliability and a fuel milage boost . I get 9mpg towing the 5R and 12-14 empty. Lots of power, quick Turbo response in its stock form.