Hi all,
just yesterday I had two new tires installed on my company car, to replace the original Goodyear Integrity tires. I did not have this car from new but "inherited" it at about 16K miles. It now has about
27K miles and the tires that were on the front were not only badly worn but had gone out of balance. I had the tires rotated at 21K miles (and it appeared that they had been rotated previously at about 14K miles) and had them balanced and the alignment checked at that time. The tires were worn in a pattern that indicated underinflation, but I'd actually been running them at higher than the recommended pressure (33-34 PSI not 30 PSI as recommended) because the car was very floaty and imprecise at the recommended pressure and also the front tires appeared to be very "squashed" at 30 PSI. The tires that are currently on the rear are not quite worn enough to warrant replacement (according to the fleet people) but are not far from it.From looking online it appears that the Integrities still suck like few tires suck... I had a set on my last company car and hated them on that car as well, although that set wore like iron and I had to wait until about 50K miles to get those replaced. But it sounds like others are reporting this wear pattern and unusually fast wear rate from reading the reviews on tirerack.com.
Question is this - is the problem with the tires, or with GM's tire pressure recommendation? New tires are Michelin Symmetry, and I'd like to do right by them because I've never had a bad set of Michelins. I have in fact sent an email query to Michelin to see if they publish load/recommended pressure charts for these tires but I kind of expect that they will say "follow manufacturer's recommendations." Or is the newer Impala just a tire eater by design?
thanks
Nate