Tire pressure for 4S?

jhall1957 · 04-19-2023, 08:53 PM

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What the best cold pressure and what is optimal pressure when warm(aggressive street) for Michelin Pilot Sport 4S?

ryo- · 04-19-2023, 10:13 PM

I've always considered 35psi cold to be the standard. or if you wanna be exact, look at the door jamb and follow those guidelines. I have a tire inflator at home so I usually just run that when my tires are cold to 35psi. if you're stopping at a gas station in the middle of a road trip, then I can see it getting tricky. if you go to the tire pressures on your screen, it will tell you the recommended warm tire pressure as well.

gp_solo2 · 06-01-2023, 09:47 PM

According to door sticker it is 38psi cold which will go to about 40-41 when hot.

pantdino · 08-18-2023, 10:53 PM

Contrary to the old days when manufacturers recommended low tire pressures (30-32psi) for a soft ride, now they want higher pressures for better fuel economy.

I've always used 36psi cold, but I also find that common dial type gauges can be 1-2 lbs off. So unless you are using a really good gauge, you don't really know what you are setting.

04-19-2023, 08:53 PM	#1
jhall1957 Captain 1096 Rep 823 Posts Drives: SE 46 Join Date: Feb 2009 Location: WS,NC iTrader: (2)	Tire pressure for 4S? Featured on BIMMERPOST.com What the best cold pressure and what is optimal pressure when warm(aggressive street) for Michelin Pilot Sport 4S? __________________ Garage; 2020 Raptor, 2011 1M, 2017 M2 PE, 2006 Z4 MC, 2007 Z4 MC, 2001 Spec E46, 2007 GT3
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04-19-2023, 10:13 PM	#2
ryo- First Lieutenant 251 Rep 355 Posts Drives: '22 MWM M240i Join Date: Feb 2022 Location: Central California iTrader: (0)	I've always considered 35psi cold to be the standard. or if you wanna be exact, look at the door jamb and follow those guidelines. I have a tire inflator at home so I usually just run that when my tires are cold to 35psi. if you're stopping at a gas station in the middle of a road trip, then I can see it getting tricky. if you go to the tire pressures on your screen, it will tell you the recommended warm tire pressure as well.
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06-01-2023, 09:47 PM	#3
gp_solo2 Private First Class 191 Rep 109 Posts Drives: BMW M235i Join Date: Jul 2015 Location: Mirabel, QC iTrader: (0)	According to door sticker it is 38psi cold which will go to about 40-41 when hot.
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08-18-2023, 10:53 PM	#4
pantdino Private First Class 40 Rep 107 Posts Drives: BMW E36 M3, 2024 M240i RWD Join Date: Jul 2023 Location: So Cal iTrader: (0)	Contrary to the old days when manufacturers recommended low tire pressures (30-32psi) for a soft ride, now they want higher pressures for better fuel economy. I've always used 36psi cold, but I also find that common dial type gauges can be 1-2 lbs off. So unless you are using a really good gauge, you don't really know what you are setting.
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