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Old 10-29-2010, 12:46 PM   #9 (permalink)
eco....something or other
Join Date: Jul 2009
Location: Colfax, WI
Posts: 717

wood hauler - '91 Ford F-250
Team Pontiac
90 day: 18.97 mpg (US)

Rav - '06 Toyota Rav4 Base
90 day: 26.52 mpg (US)
Thanks: 39
Thanked 59 Times in 45 Posts
you should see some gains with the flywheel. More if you drive in town, less if you drive highway. It varies in proportion to how many times you rev cycle the engine. If you want to see more, try skipping gears if your gearing allows that.

1991 F-250:
4.9L, Mazda 5 speed, 4.10 10.25" rear
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