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Correct tire pressure for a tropical climate?

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I live in the Cayman Islands where the average daily temperature is around 85 degrees year round. Summers are up around 90 and around this time of the year it may drop to around 75 occasionally. I have a '99 996 C2 6-speed. There are never more than 2 people in the car and it is used as a daily driver only.

It has Continental SportContact 2 tires. 225/40 ZR18 in the front and 285/30 ZR18 in the rear. Based on my location and car usage what would be the recommended pressures?


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There should be a note glued on the driver side B-pillar, 18 " front 2.5 Kg/cm² rear 3.0 Kg/cm² measured on cold tires (for example: in the morning, car not driven yet)

If you don't see the tire pressure chart around the driver's door, check under your frunk lid. That's where mine is on my '99.

I'm in Florida (it gets hot & muggy here, too!) and the factory PSI's seem to work fine for us.

Edited by DaveFL76
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