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post #1 of 3 (permalink) Old 04-26-11, 02:35 PM Thread Starter
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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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post #2 of 3 (permalink) Old 04-26-11, 03:33 PM
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Re: 351 gas mileage

Moved to the F-250 part of the forum.

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post #3 of 3 (permalink) Old 05-01-11, 10:37 AM
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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.

'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
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