this post was submitted on 18 Jul 2024
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Mechanic Advice

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The age old tire pressure question (lemmy.world)
submitted 4 months ago* (last edited 4 months ago) by venusaur@lemmy.world to c/mechanicadvice@lemmy.world
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2001 Infiniti QX4

Placard on car says 26 psi cold

Tires say 32-49

Rear tire is set to 27 cold

Does this look under-inflated? What’s the lowest I should go?

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[–] Nomecks@lemmy.ca 1 points 4 months ago* (last edited 4 months ago) (1 children)

The placard is useless if the tires aren't the factory type. Don't inflate tires to less than minimum pressure if you don't know that they're the right tires for the vehicle.

[–] venusaur@lemmy.world 1 points 4 months ago (1 children)

Thanks. They’re the right size but what other factors do I need to account for when matching a tire?

[–] Nomecks@lemmy.ca 1 points 4 months ago* (last edited 4 months ago) (1 children)

Load rating is a big one. Speed rating and number of plies can affect it too

[–] venusaur@lemmy.world 1 points 4 months ago

Thanks I’ll check those. These seem to be pretty heavy duty tires