Gen 1 diesel.

[86MUDRCJ]

Booby's right, the 4bt is NOT a refined motor. It will shake, rattle, and roll. It will howl and growl at you the entire time your cruising. The turbo will just sing to you. You'll love every minute of it.

If you want a good long lasting gas mileage motor, either one will work. If you want to make a lot of power and beat on it like you stole it --- go with the Cummins.

I do want a long lasting motor but at tge same time I want to be able to put it ti the floor from time to time. Plus I like loud and angry sounding motors. It just says get outta my way or ill make you.lol