Well, in my situation, my car is not a daily driver. So, tire wear and fuel economy is not high on my list. At our age comfort comes first over economy. As for running the tires at a higher than recommended pressure, I think may improve fuel economy, but the handling is not improved b/c you're riding on the center of the tire. Also, over-inflation is a no-no at high speed b/c as the tires heat up the air in them expands and the pressure increases anywhere from 2-4 lbs., depending on how far and hot you drive them. I have Contis on my car and the rears have half way worn with 11000 mi so maybe I'll get another 7000 mi on them, but the front have very little wear. So when the time comes to replace, I'll buy a set of used contis for the rear, allowing the front to catch up on the wear, and I'll save alot of money. I think the reason the rear tires wear faster is the fact that they're the pulling tires, and the rear is so light, so they work harder to keep the car on the road. Anybody have any other input? Caught in a Xfire.