
The huge PSI on the tire is a maximum. Daily pressure is on the driver's door sticker. Set them cold, in the morning.
Pressure drops when the weather drops. Check monthly, not once when you buy the car.

Set PSI from the door sticker, rotate the pattern that matches the car, torque the lugs
A complete rotation: cold pressures from the placard, the right pattern for FWD vs AWD, marks so you don't scramble the tires, torque, and a TPMS check. You will also read wear so you know when rotation cannot save a tire.
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The huge PSI on the tire is a maximum. Daily pressure is on the driver's door sticker. Set them cold, in the morning.
Pressure drops when the weather drops. Check monthly, not once when you buy the car.

When tread is flush with the wear bars, replace. Inner-edge bald with outer still good is often alignment or camber, not a missed rotation. Rotating will not fix a bent control arm.
A penny or a cheap gauge is enough to stop guessing.
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