Originally Posted by Roadhouse
Brian, I'm not going to talk you into a gas motor and out a diesel. But towing with a 5.7L compared to a 6.0L Chevy is a night and day difference. I tow a 30 camper that weights roughly 7800lbs, with a '99 Suburban 5.7L and 3.73 gears and it struggles. My Suburban was in the shop for a new fuel pump so borrowed a buddies 2000 Chevy w/6.0L and 4.10 gears. The 6.0L towed like the camper wasn't even behind it. Both sucked fuel tho' towing.
I'd still get a diesel if I was you...just wante to bring up that point about the two Chevy engines.
On this same note, going from a 6.0 Suburban to towing the same load with '90 Cummins truck was night and day.
If you are wanting an auto, I would say Chevrolet, Dodge otherwise.
Another note, I saw something mentioned earlier about idling. Cummins recommends not idling their engines more than five minutes I believe. It has something to do with the mass of the head. The temperature difference between the block and the head stresses the headgaskets or something.