I have gone through several sets of Bridgestone Blizzak snow tires. They work awesome!!! Problem is the centers burn out real easy. Normally you would think that this is from too much air pressure (I ran them at 32 psi), but when I ran them at a lower pressure (24psi) they did the same thing! Does anyone know what the deal is here?? I do a lot of highway driving (70-75MPH), is this the problem, just too fast for them??? Thanks for any responses.

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'87 IROC, 305TPI, 5Sp, , 170K miles, all original except for K&N filter, Vin F