Quote:
Originally Posted by wiredgeorge
Don't worry about fuel efficiency of the new 7.3L! Ford perfect gas engine fuel efficiency with the 7.5L as in my old F250. Even though the 460 CID pig had only 130 hp and 150 ft/lbs of torque, having a huge engine gave me peace of mind as I pumped regular unleaded into it CONTINUALLY! I wish I had bought the fuel efficient Chevy 8.1L. Probably would have seen 30 mpg with that monster. All Ford Super Duty trucks should be renamed Super Thirsty. You want in the big boy game, you pay for the fuel.
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The old 454 GM engines weren't quite as thirsty, with them you stopped to check the gas & fill it up with oil, they about 500 miles per quart. On either the Ford or GM big blocks 8 mpg was about average, towing about 6.