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Tire Pressure 2010 Boxster S 18 inch rims stock

  • 2010
  • Boxster S
45 000
Wheels and Tires

Porsche Boxster S 2010 18 inch rims

Tires 235/40/18 front 265/40/18 rear

The Poresche Manual states tire pressure front 29psi rear 36psi page 278

The door jam sticker reads 30 front 31 rear

all summer settings Who's right

The TPC monitors at 30 front 31 rear

The problem is my previous Boxster S had 265/35/18's on the rear and factory setting was 36psi

Thanks again for your help

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