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      06-11-2019, 01:09 PM   #2
Jim S
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Drives: Z4 M40i G29
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Yes, I have noticed this a well. I think the recommended tyre pressures are adjusted relative to the ambient temperature. The hotter the tyres are the higher the recommended pressure.

34 psi seems to be the normal recommended pressure front and rear at base ambient temperature. I am guessing that will be about 70F. I am also guessing that at 80F it will be 35psi and at 90F 36psi and so forth.

Just my thoughts. Not sure though.

Correction:
32psi is the recommended tyre pressure according to the door sticker. I set mine 2psi higher, ie 34psi

Last edited by Jim S; 06-12-2019 at 11:37 AM..
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