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Old 05-18-2012, 05:48 PM   #4 (permalink)
Miller88
Master EcoModder
 
Join Date: Jul 2008
Location: NY state
Posts: 501

XJ Cherokee - '00 Jeep Cherokee Sport
90 day: 12.96 mpg (US)

FoFO - '11 Ford Focus SE
90 day: 36.78 mpg (US)
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When you say "over" do you mean over the car manufacturer recommendation or over the max psi on the sidewall?

Tire pressure definitely makes a big difference in both fuel economy and ride quality!

My 3000 pound Jeep has Load Range E truck tires. If I inflate them to 80PSI the jeep will bounce off of the surface of the pavement on bumps!
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