I agree with the general opinions, that the 3.08 might be too low.
I am running into a similiar situation with my 97 Ram. I frequently read that the magic target number is 55mpg, but my 360 truck with 5 speed and 3.55 gears doesn't like 55, and the scangauge backs it up. I consistently get better instant and avg MPG at 62-65 then I do at 55.
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Current MPG driver:
1994 Isuzu Rodeo - Beater with a Heater...
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