Tire

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Originally Posted by Groundpounder

I have 49000 on the stock tires and the sidewall blew a leak. Glad it was sitting in the driveway when it went down. Need to get a good floor jack.
I have the standard P275/ and I want some more rubber on the road. I spend most of my time on the highway. If I go to P265/ I will get wider and a little taller. My question is - will it throw off my speedometer by much?

not at all. It will be so minor!!! You could even fo to a 285 and still have your dealer change the calibration without issue and effecting mpg. Now if you went to a 315, you will be off about 6 mph at 55 and your mpg will decrease about 3mpg. hope that helps.