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Old 08-05-2010, 04:31 AM   #2 (permalink)
bestclimb
Smeghead
 
Join Date: Oct 2009
Location: South Central AK
Posts: 933

escort - '99 ford escort sport
90 day: 42.38 mpg (US)

scoobaru - '02 Subaru Forester s
90 day: 28.65 mpg (US)
Thanks: 32
Thanked 146 Times in 97 Posts
fill the car and record the odo.

during your tank drive a known distance and compare to the distance your odo says. do math magic to get a % of how much your odo is off

Next fill record gallons and odo subtract old odo from new odo to get miles. multiply miles times % then devide by gallons
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