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If you have a set of Bias Ply tires from the 1970's then you are correct, you will wear the center out faster, but if you have those new radial tires that have been all of the rage for the last 30 to 40 years then you should be just fine with higher pressure, the sticker on the door tends to give the pressure that gives the best ride comfort without being so soft that they put you in danger of side wall blow out and that is caused by low tire pressure allowing the tire to flex so much that it over heats, the rubber brakes down and the tires side wall gives out.
A while back even AAA published something saying that there wasn't any risk in higher tire pressure as long as you stayed within the design limits of the tire.
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