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Old 07-27-2008, 08:47 AM   #8 (permalink)
Gregte
EcoModding Apprentice
 
Join Date: May 2008
Location: South Dakota
Posts: 117

GMC Sonoma - '94 GMC Sonoma
90 day: 36.97 mpg (US)
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I also agree with pumping the tires up. Mine say 35 PSI max but I pump them to 40. Also, remember that the pressure rating stamped on the sidewall is always stated as the COLD pressure rating. It will go higher once the tire warms up. Don't let this concern you, it is supposed to be this way.

It is fun to find a small vacant stretch of road where you can start a coast at a given speed and see how far you can go till it stops. Try this with your tires pumped to various levels and see at what point further pressure increase does not show a further coasting distance.
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