HomeAll RepliesRe: 2014 Colorado Re: 2014 Colorado Sponsored May 6, 2012 at 8:23 pm #39870 BabersherParticipant Id pick the 2.0 tt, it would be cheaper and better mpg when not towing/hauling anyhing There should definitely only be one duramax, the 2.5 or the 2.8, not both. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored