tire size on AE
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Joined: Jul 2006
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From: Visalia CA
tire size on AE
Do you guys with AE put in the tire size per the specs or measure the actual tire and enter that in? My 285's say they are 32.8" but actually measured at 31.5"......
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Joined: Jan 2008
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From: Bridgewater, VA
I would go with the measured. Going by your info, that makes about 4.1" difference in circumfrence which accounts to apx 3.96% difference in the speedo (i.e. if you went 150 miles on 10 gals = 15mpg ..... corrected would be 15.6mpg) just my opinion
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From: Visalia CA
I wish the speedo was digital like my gps. Its hard to pin point if its dead on or off just a hair, you know. I currently have it at the measured size and at lower speeds it seems to be right on. When I set the cruise at 65mph, my gps shows 66.5 mph. Over time that accounts for a lot.
