10 miles to the gallon?? - Ford Powerstroke Diesel Forum

7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

 
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post #1 of 3 Old 01-17-2008, 03:22 AM Thread Starter
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10 miles to the gallon??

1992 f250 7.3 non turbo 4x4 does 10 miles to the gallon sound normal or is there something i can do to get better.i have changed the fuel filter,oil,air filter and been using fuel conditioner
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post #2 of 3 Old 01-17-2008, 04:17 AM
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My 91 had horrible fuel mileage until I turned up the fuel pressure. Easy to do.
Turn it up per the instructions found in this section. It should smoke slightly under hard excelleration when you have it right. You should pick up 3-6 mpg or more.
Howard
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post #3 of 3 Old 01-18-2008, 09:58 PM
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Check the timming... a little off, makes alot a diferance. Find someone that knows these engines and has the right tools. Don't pay for a time-by-ear. Look at the pump to cover marks where the pump mounts. The marks should be close to lined up.

94 F-250 idi fatory turbo,4x4 exd cab,long bed,4.10limited slip,only165,000 miles
95 T-bird 4.6 v-8
80 street driven Toyota 4cyl(200hp) mud bog truck wth AC and power steering.
84 Toyota ext cab, weber, header, crane cam
93 F-150 4x4 exd cab, short bed 302 sold
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