51 psi tires, inflated to sidewall max. The past 2 months I haven't had to add any air; increased temps seem to be keeping pace with any leakage. I keep checking every 2 fillups (every 4.5 weeks) and each time my psi has increased. I started at 50 and now I'm at 53 in a couple of tires.
Probably shows how important it is to check in the fall!