The door sticker says 29psi cold. I have been running 29psi cold for about 4500 miles. When the tires warm up they are about 32psi. I decided to run a couple more psi the other day on a short 1.5 trip. So, 1.5 hours there I ran 29psi cold / 32psi warm. The 1.5 hours back I ran 31psi cold / 34psi...