Captainsteveo3006
New member
I am a fleet mechanic and the best motors out there are the 7.3 powerstroke and the 12 valve cummins. No emissions = better fuel economy. New diesels are getting horrible fuel economy (thank you EPA) and most take DEF fluid on top of the price of fuel being through the roof. Buy a 7.3 or a 5.9 and add 2 stroke oil to the fuel on every fillup to combat the ultra low sulfer.