Quote:
Originally Posted by physics
The dealer sold the car to me with 28 psi in all tires, which I promptly pumped up to Nissan's recommended 32 psi. The maximum recommended inflation pressure on the sidewall is 51 psi, so I split the difference and now am running 40 psi in all tires. The ride is not noticeably harsher but it does seem to be a little more precise and responsive in the feel. I'm going to get a tire tread depth gauge and monitor the wear across the tread. My goal will be to equalize the tread wear across the tire.
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Don't run 40 PSI in your tires
32-35 PSI is plenty for daily driving.
Also, the suspension geometry of the Z will never give you even wear across the tires on a daily driver.