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Old 05-03-2011, 12:58 AM   #4 (permalink)
Fr3AkAzOiD's Avatar
Join Date: Jul 2008
Location: Raleigh, NC
Posts: 259

Cobalt XFE - '08 Chevrolet Cobalt XFE
Team Chevy
90 day: 41.1 mpg (US)

'05 Malibu V6 Tow Vehicle/Track Car - '05 Chevrolet Malibu LS V6
90 day: 23.12 mpg (US)

'08 XFE average for 2013 - '08 Chevrolet Cobalt XFE
90 day: 41.1 mpg (US)
Thanks: 41
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I ran my OEM tires for about 48,000 miles at between 40 - 44 psi and they wore perfectly even and I got more miles out of them then most people I have talked to at and

I believe the tire lifts the front and back of it's tread patch more then it's left and right sides.
There are still safety issues with a reduced contact patch and braking though.

I see a test coming up.
Jack up the front of a car, put some washable paint on the bottom of the tire then lower it onto a piece of paper.

Try that at 15 psi, 30 psi, 45 psi and measure the difference in contact patches.
Would be a solid way to see what changes.

I'm working 12 days strait without a day off and about 55 hours a week so no chance I'll have time to try this anytime soon but if somone else wants to give it a go they are more then welcome.
Lifetime mpg

2012 mpg
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