Thread: tire cupping
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Old 03-06-2007, 08:08 PM   #6
MNBoxster
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Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Quote:
Originally Posted by Boxster75
I recently purchased a 2003 Boxster with only 5500 miles on it. I had to replace a rear tire thanks to driving it a mile while it was flat (interior tire damage). I took the car to Big O Tires here in Palm Desert, and I was told that the tires were cupping and that the car would need an alignment. I think I'm going to buy another new rear tire so I have both tires new in the rear. When I took my car to the dealer, he told me that my car didn't need an alignment, and that the tiptronic trans was heavy and it made my car 'squat' more, which can lead to inner tire wear, or cupping. The service manager told me to monitor tire air pressure and keep driving it. So the question is, do I need an alignment, do the tires/wheels need to be balanced...or what? I don't want to spend unneccesary money on my vehicle, however I don't want to wear out my tires ever 8,000 miles as my Porsche rep said they would...please help.
Hi,

If your tires are cupping, there is something wrong - Porsche didn't set up the car to cup the tires. Read my earlier post and go from there. Your tires may need balancing and you may need an alignment. Alignment, contrary to most's thinking, isn't mileage related - example: Get your car aligned, leave the Alignment Shop, hit a giant pothole or a curb stop, and BOOM - you need another alignment. Yes, with alloy suspension parts, it is that sensitive.

Most people require an alignment annually, though few get one. Instead, they live with vibration, steering issues, accelerated Tire wear, possibly even safety issues, all of which cost them an equal or greater amount of money in the long run than regular alignments would. It's a Sports Car folks, and a Porsche at that... you gotta Pay-to-Play, don't like it? Buy a Honda!...

Happy Motoring!... Jim'99
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