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Old 12-10-2012, 02:49 PM   #9 (permalink)
tru
EcoModding Apprentice
 
Join Date: Aug 2011
Location: FL
Posts: 126

tru - '05 Ford Focus ZX3
90 day: 39.46 mpg (US)

the truck - '02 GMC Sierra Denali
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he will have a scan gauge next time im down that way as a test instrument... I really think he needs to go thru the car completely to see that theres no underlying maintenance issues holding him back

I.e.

Air filter
spark plugs / wires
changing to a light synthetic oil at the next interval

(might not hurt to see what the previous driver/owner was getting for mileage)
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