Tyre air pressure for high speed highway driving?

Suzuki hatchback tech questions and answers.
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Crank
Posts: 67
Joined: Sun Oct 16, 2005 4:27 pm

Hi Guys,

Tomorrow i'm going for a long drive (800km) in my Zook hatch, i need to know what pressure to put into the tires for high speed (100-120kmph) drives on the highway.

The tires are 165/60/R12 Bridgestone Potenza GIII on alloys.

How much should i fill front and back? I used to put 30 all around. Is that okay? Or should i underfill by a couple of psi coz on long drives the pressure would increase with heat.

Cheers.
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Brayden
Posts: 9101
Joined: Sun Apr 11, 2004 3:09 am
Location: Canberra ACT
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I don't think it would matter that much given the weight of the car, but I run no more than 27PSI in my 13", and around 32PSI in my 15".
F8B EFI turbo - Three pots and a snail.
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