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Okay, I've been negligent. I have had my Mustang for just over two months now and have kept an eye on the oil level, coolant level, etc. so I don't get any nasty surprises from a car that is still fairly new to me. What I have not checked, however, was the tire pressure. The place where I work was closed for a couple of weeks for the holidays and my Mustang did not move from it's covered parking spot at home very much during that time. Having returned to work this past Monday, I have noticed that my car was riding/driving a bit odd. Not badly, just a little differently than what I have gotten used to. I figured that since it was parked for a couple of weeks and the weather has been going from warm to cold and back again, one of the front tires might be a little low, so I checked them when I stopped to get gas, using the built-in gauge on the air compressor at the gas station. I have Dayton Daytona 245/45ZR17 tires all the way around (they were on the car when I bought it) and the sidewall says that the maximum pressure is 40psi, but to check the specs for the individual vehicle blah, blah, blah. The sticker inside my fuel door says to fill the tires to 30psi. As I suspected, the passenger side front tire was at about 25psi - about 5 pounds low. No problem, I aired it up to 30. The driver's side front tire was dead on 30 while the driver's side rear was at about 29, so I aired it to 30. The big surprise was the passenger side rear tire. It was aired to almost 50psi! After saying a few surprised expletives, I let the pressure out to 30psi. My question is, does anyone know of any valid reason why this one tire would be inflated so high, or is it just that the last person to air up the tires screwed up? I have heard of inflating rear tires on a rear wheel drive to five pounds or so more than the front, but never that big a difference and never just one tire.
I guess it is a good thing I have been trying to conserve tire rubber and not doing many burnouts. I can imagine that overinflated tire popping! I just hope that running it over pressure hasn't weakened the tire already and that it doesn't end up causing problems down the road.
I guess it is a good thing I have been trying to conserve tire rubber and not doing many burnouts. I can imagine that overinflated tire popping! I just hope that running it over pressure hasn't weakened the tire already and that it doesn't end up causing problems down the road.