The summer is almost over here on the east coast of the US of A and I have to start thinking of what to do about the car for the winter. I will probably get to drive it until late October but, it could be later or earlier. That's what comes from living in New England. While I have put on 4000 miles since I bought the car in 05/2010, I have been advised that it is best to change the oil even with only 4000 miles as there is carbon deposits in the oil. I also discovered the tires will need replacing. I drove aggressively at times this summer but not overtly. I was cleaning the wheels when I noticed the inside of the rear wheels were worn to the wear bar while the outside of the tire still had some play. I am trying to decide if I should change them out before I park it or wait until I get it out next spring. I also am wondering what tires. The 911S has michelin PS2 and I definitely liked the way it handles or did before the tire wear. I see consumer reports likes hankook tires whhich are way less expensive. The PCA tech rep said they would work on the 911. Car and Driver in a recent article this past summer rated them number 2 out of ten or so tires. I am thinking, for the price, I should try them. What to do? I still have time but I could use some input. Do I need to get a 4 wheel alignment for the car? I will continue to research.