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Old 10-10-2008, 06:37 PM   #10 (permalink)
Big Dave
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Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,319

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
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Curly1:

Welcome to EM.

I'd recommend going back to the original diameter tires. That's one thing the factory generally gets right. Bigger diameter tires reduce MPG because oftheir higher rotational moment of inertia. Lots of pickup guys thouight bigger tires would help but once they correct their odometers, they find it got worse.

Smaller diameter wheels/tire aid the aerodynamics as well.
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2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
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