this could use be a possibility for future model years, so why not look back into it. the new Duramax 4.5L turbo-diesel is proving to be pretty impressive. completely innovative intake & exhaust designs along with a variable-geometry turbo combine to make 310hp and 520lb-ft of torque! all that with an estimated 25%
higher fuel efficiency than a similarly-powered gas engine. i would jump at this in a heartbeat!