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tire pressure adjusment

Wheels and Tires

Vehicle Information: Model: 911SC; Year: 1980; Body Type: Coupe; Total Mileage: 150,000;

Should tire pressure be adjusted for temperature? The manual for my other car (Saab 9-3)says that the recommended tire pressure is for 68F and that tire pressure varies by 2 degrees per 10F. So, for example: Given that the manual for the SC recommends 34 psi for the rear tires, should the pressure be increased to 36 psi if the outside air temp is 78F, or should I keep it at 34?

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