I believe in most cases that after 50 psi the returns drop off. I don't think many push it past 60 psi for testing. Something to keep in mind is that when driving the tire heats up and PSI increases an additional 3-4 #s. Tires can take some serious air beyond stock spec in my opinion. I worked at a garage in high school and remember a golf coming in with 3 tires in the upper 80's and 1 at 91.
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Don't know why it says 00, it's a 95
374,000 miles and tired.
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