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Old 04-26-2011, 13:35   #1 (permalink)
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351 gas mileage

Hello - I have a 1989 F250 4X4 with 351, A.T. 46K original miles, very well taken care of. Recent tune up, etc., etc. On a recent trip with a 3,000 lb slide-in camper got around 7-8 mpg and now just driving very easy around town, still get about 8 mpg!! Is there any way to improve the fuel economy - short of buying a new truck?
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Old 04-26-2011, 14:33   #2 (permalink)
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Re: 351 gas mileage

Moved to the F-250 part of the forum.
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Old 05-01-2011, 09:37   #3 (permalink)
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Re: 351 gas mileage

Quote:
Originally Posted by Zuniz2 View Post
Hello - I have a 1989 F250 4X4 with 351, A.T. 46K original miles, very well taken care of. Recent tune up, etc., etc. On a recent trip with a 3,000 lb slide-in camper got around 7-8 mpg and now just driving very easy around town, still get about 8 mpg!! Is there any way to improve the fuel economy - short of buying a new truck?
Depends on a lot of factors. Namely the transmission (over drive or not) and the axle ratio. 3000lb camper or trailer for that matter won't net you much above 10mpg on a good day anyway. Speed is also a factor on the highway however city driving takes a greater toll.

Other than a tune up, check tire pressure there's not much else you can do to improve mileage. It's a truck.
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