I started out years ago towing our 7,000 lb trailer with my old chevy 2500 with the 350. I tow mostly in the Sierra and Rocky Mts. I hated the way I had to slow down to 45 mph going up the grades. So ...
Maybe I should be looking at a diesel. What kind of mileage will a diesel get doing 65 up a grade? What kind of mileage do they get while not towing? I an not pulling 14,000 lbs I am pulling a little under 7,000. Which diesel truck will get me up the hill at 65 and deliver the best mileage?