Tire pressure, for ANY car, is posted on both the door jamb and in the Owners Manual.

There is no offset or correction for any brand of tire. Period.

Running your tires at some ratio of maximum works ONLY if said ratio works out to be exactly the same as that posted on the door jamb or Owners Manual.

Our TPMS system will fault, as I recall, at +- 10% of posted pressures. 30 PSIG low and 38 PSIG high. (33 and 35)

If anyone cares to argue these points, please bring printed evidence. Not some advice you received from your uncle *****.

Sheesh.