Non run flats staggered setup tire pressure

ny325 · 08-05-2020, 10:17 PM

I used 36psi when I had stock 17 inch, sport package run flats OEM Bridgestone Potenza. I finally ditched run flats, and switched to non run flat Michelin Pilot Sport All Season 4. I’m not sure if should set the Michelin’s to 36psi, or 32psi. My bmw technician recommended 36psi, my Indy recommend 32psi. I’m leaning towards 36psi. Any suggestions? Thank you.

2008, E90 sport package.

Canadiesel · 08-06-2020, 03:55 AM

I have staggered 17" non-runflats. Continental ECS. 32psi fronts 35psi rear.

This allows for enough expansion when hot.

How do you like the new Pilot AS4 tires? I've been very happy with the AS3+ on my other cars.

ny325 · 08-06-2020, 09:13 AM

I like them. The ride is much smoother, quieter, and comfortable. I was thinking of putting 36psi on all 4. Or just leave them at 32psi. My car sits for about 3, to 4 days. I had the low pressure light come on twice.

Do you carry a spare?

tcphoto · 08-06-2020, 10:37 AM

I replaced the Run-Flats in October '18 with PS4's and run 34/36psi. Michelin offers free roadside service for two years so I better find a spare before it runs out or have AAA service.

ny325 · 08-06-2020, 12:06 PM

I have AAA. However, not sure what good that is without a spare. I’m researching spare tires options, tire plug kit, or mobility tire kit.

ny325 · 08-06-2020, 05:57 PM

I went with 36psi on all four tires today.

The temperature dropped about 10 degrees last night. And so did my tire pressure. It went from 32psi yesterday, to 28psi this morning.

nsjames · 08-07-2020, 10:38 AM

https://static1.1.sqspcdn.com/static...+inflation.pdf

the load range is what matters here.

compare new load range to old with the chart, it will get you in the neighborhood.

but really the proper way is to chalk the tread and sidewalls and see how much the tire rolls over in a turn.
and to monitor tire temp and pressure before and after driving.

08-05-2020, 10:17 PM	#1
ny325 Brigadier General 892 Rep 3,140 Posts Drives: Jet Black E90 Join Date: Feb 2007 Location: Gridlock iTrader: (0)	Non run flats staggered setup tire pressure I used 36psi when I had stock 17 inch, sport package run flats OEM Bridgestone Potenza. I finally ditched run flats, and switched to non run flat Michelin Pilot Sport All Season 4. I’m not sure if should set the Michelin’s to 36psi, or 32psi. My bmw technician recommended 36psi, my Indy recommend 32psi. I’m leaning towards 36psi. Any suggestions? Thank you. 2008, E90 sport package.
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08-06-2020, 03:55 AM	#2
Canadiesel Private 28 Rep 86 Posts Drives: 2011 BMW 335D, 1999 BMW M3 Join Date: Mar 2019 Location: Vancouver, BC iTrader: (0)	I have staggered 17" non-runflats. Continental ECS. 32psi fronts 35psi rear. This allows for enough expansion when hot. How do you like the new Pilot AS4 tires? I've been very happy with the AS3+ on my other cars.
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08-06-2020, 09:13 AM	#3
ny325 Brigadier General 892 Rep 3,140 Posts Drives: Jet Black E90 Join Date: Feb 2007 Location: Gridlock iTrader: (0)	I like them. The ride is much smoother, quieter, and comfortable. I was thinking of putting 36psi on all 4. Or just leave them at 32psi. My car sits for about 3, to 4 days. I had the low pressure light come on twice. Do you carry a spare?
	Appreciate 0 Quote

08-06-2020, 10:37 AM	#4
tcphoto Brigadier General 4137 Rep 3,235 Posts Drives: E92 335i 6MT Coupe Join Date: Dec 2009 Location: Nashville, TN iTrader: (1)	I replaced the Run-Flats in October '18 with PS4's and run 34/36psi. Michelin offers free roadside service for two years so I better find a spare before it runs out or have AAA service. __________________
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08-06-2020, 12:06 PM	#5
ny325 Brigadier General 892 Rep 3,140 Posts Drives: Jet Black E90 Join Date: Feb 2007 Location: Gridlock iTrader: (0)	I have AAA. However, not sure what good that is without a spare. I’m researching spare tires options, tire plug kit, or mobility tire kit.
	Appreciate 0 Quote

08-06-2020, 05:57 PM	#6
ny325 Brigadier General 892 Rep 3,140 Posts Drives: Jet Black E90 Join Date: Feb 2007 Location: Gridlock iTrader: (0)	I went with 36psi on all four tires today. The temperature dropped about 10 degrees last night. And so did my tire pressure. It went from 32psi yesterday, to 28psi this morning.
	Appreciate 0 Quote

08-07-2020, 10:38 AM	#7
nsjames Brigadier General 2461 Rep 4,328 Posts Drives: 08 328xi Touring Join Date: May 2017 Location: ohio iTrader: (0)	https://static1.1.sqspcdn.com/static...+inflation.pdf the load range is what matters here. compare new load range to old with the chart, it will get you in the neighborhood. but really the proper way is to chalk the tread and sidewalls and see how much the tire rolls over in a turn. and to monitor tire temp and pressure before and after driving.
	Appreciate 1 ny325892.00 Quote