2010 Toyota Corolla Tire Sizes:
Original Tire Size
P195/65R15 89S
Alternate Tire Size
P205/55R16 89H
Mixing tire sizes is often done because one or two tires have worn out before the others. There are many ways to avoid this problem. The first is to stay on top of your tire rotation. Rotating the tires of your car will help all of the tread wear out evenly.
You should also replace all four tires at once, or at least replace front tires together and back tires together. If you find that three of your tires need to be replaced, consider keeping the fourth tire as a spare and then replacing all four. Another great way to ensure that your tires wear at the same speed is to purchase all four new tires from the same manufacturer and of the same brand.
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