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      05-24-2018, 11:40 AM   #1
wyshyvanuk
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OMG Tire Pressure

2008 Z4 M Roadster:

Sticker on door jamb - 30/30
M Supplement to Owner's Manual - 30/32

Any insight into which is the real recommended rear tire pressure.

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      05-24-2018, 12:32 PM   #2
3002 tii
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What exactly does the door jamb say, i.e. what tire sizes are listed? Max psi, cold psi?

30/32 seems fine for OEM staggered specs
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      05-24-2018, 02:56 PM   #3
wyshyvanuk
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From the door jamb:
Cold Tire Pressures
225/45 R 18 30psi
255/40 R 18 30psi
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      05-24-2018, 04:27 PM   #4
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IMHO, 30-36 psi. Season to taste.
I like my rears a little firmer than the fronts.
I think I'm at 32 F x 34 R stone cold.

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