Currently my diesel has been converted to run solely on tree huggers, I started out by shoving some asshat fro the sierra club in the tank and worked my way up to complete eco nazi's. It took a parking lot of prius owners to really brake the truck in properly, but now she runs like a top and average about 300 miles of city/highway driving. Out of a child of a eco nazi, full blown hardcore tree huggers are good for 500 miles. Usually i just go to REI, and bonk one of them on the head in the parking lot as they enter there prius or volt, take then home and process them properly so as to not clog up my fuel filter and injectors. Horsepower is down compared to diesel is the only downfall. This truck on diesel had 525 hp at the rear wheel with 120 horse injectors, edge ceramic ball bearing 67 cm turbo and edge comp box that had been tweeked, now i believe the truck has no balls at all. But how do i convert from tree hugger back to diesel ? I just do not know, and my uncle doesn't know shit about shinola.
Just an FYI. the cummins diesel is such a great motor, in a pinch, it can run on underprivileged children.