Quote:
Originally Posted by tomato coupe
When we went from a gas F250 (7.5 l ?) to a diesel F250 (7.3 l ?), efficiency went from 10 mpg empty / 9 mpg loaded to 18 mpg empty / 13 mpg loaded, with a 8,000 lb gooseneck trailer.
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That sounds spot on for highway use. I see 15-16 empty around town, 18-20 hwy, and 13-14 towing around 9-10k, in hilly country (mostly highway).