Help! My new tires are wearing way too quickly on the outer edges at the front (and inner edges too, but not as much), and to some extent, at the rear as well. I have had it aligned three different times by three different shops (the second was the Volvo dealer). The last guy told me to inflate tires to 40 PSI or so (can't recall exactly what he said for front vs rear). I have read posts where others have inflated their tires and gotten better wear, and others who say this will beat the car to death. I understand that there must be a trade-off, but would rather wear out tires than hurt the rest of my car. I also was just told I had a bad ball-joint and strut bearing when having my oil changed, and this was just weeks after I had inflated the front tires to 40 PSI. The car had around 144,000 miles at the times. Could these higher air pressures have hastened the life of the ball-joint and/or strut bearing, especially if I had hit a pothole or something? BTW, I am running 225/55-16 Michelin Pilot Sport A/S Plus. Worse comes to worse, next time it might be better to get a tire that's not uni-directional, so I can at least flip them around to try to even out the wear if this trend continues.