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i work at a tire shop and honestly i tell people to not go over what the manufacture states because they did all the testing to determine what the pressure needs to be but, for winter to combat loss of pressure due to weather it’s safe to go abt 2-3 psi over the recommended pressure. also most cars tire pressure is between 30-35 psi so 32 is just fine most tire maximum is 40 psi unless stated otherwise on the side wall. hope this help on my car i just run what the sticker in the door jam says the only time you really would need to run a lower air pressure is if your doing intense off roading and need the extra suface area or pro level drag racing.
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