I HAVE A 2004 TORRID RED AUTOMATIC GTO. I CHANGED MY ORIGINAL SET OF TIRES AT 14,000 MILES. I HAVE 24,000 ON THE CAR AND WERE ALMOST READY FOR THE SECOND SET! THE FRONT TIRES ARE WEARING ON THE OUTSIDE AND THE REAR TIRES ARE WEARING IN THE CENTER. TIRE PRESSURE IS ALWAYS CHECKED. I DRIVE 3 MILES A DAY TO WORK AND BACK AND FORTH TO THE STORE EVERY NOW AND THEN. I HAVENT SPUN THE TIRES.(ALTHOUGH I WOULD LIKE TOO!) TCS IS ALWAYS ON! I HAVE HAD AN ALIGNMENT 2 TIMES AND I DONT HAVE THE STRUT RUB PROBLEM. THIS IS REALLY GETTING EXPENSIVE! ANY SUGGESTIONS?
In my experience that is really excessive wear for a GTO.
I beat the pi$$ out of the OEM KDWS's and they lasted more than 20K. Spun em, smoked em, quite a few runs north of 140. Even a soft performance tire like the Goodyear F1 GS-D3 should give you more than 10K the way you describe your driving habits.
What tires replaced the OEM's?
Who did you use for the alignments? A GM dealer or 3rd party? Are they qualified? Do they have the proper equipment? Did you deviate from factory caster and camber to change the handling?
What pressure do you maintain? I maintained mine at 34 PSI. That seemed to produce relatively even wear across the the entire footprint.
What sort of surface are you driving on, relatively smooth asphalt, or a combination of potholes and frost heaves?
Are you the original owner of the car? If not, are you sure it hasn't been in an accident? No frame damage? No suspension parts bent or out of alignment? Wheels all true?
Where is the most severe wear? Center? Edge? Uniform?
Do you rotate the tires at approx 5K miles? Sounds like you've got different wear patterns front and rear.
What about other wear characteristics? Any cupping? Have you checked the shocks & struts for leaks?
Who drives the car other than you?