Tire Pressure? - M5POST

LAKEOM5 · 01-06-2013, 08:42 PM

What are people setting for tire pressure? Front and back?

I have the 20's and the manual says 36 if driving under 100mph. 40 if over.

I don't plan to go over 100mph that often but will at times.

Looking for the optimum level without over inflation.

Thoughts?

dr.skp.ortho · 01-06-2013, 09:09 PM

I run 280KPa which is 40 PSI.

My opinion is to use the highest permissible pressure.

bobblehead · 01-07-2013, 08:27 AM

35 square

stealth.pilot · 01-07-2013, 08:43 AM

I run 37 on all wheels.

Steel Blue · 01-08-2013, 07:41 AM

I ran 36 psi / 250kpa cold for 5000km and this included 4 750km journeys of between 200 - 250km/h speeds. When I recently sent the car in for alignment and tyre rotation, I realised that the middle sections of the Michelin PSS were worn more than the sides. I believe that I may have overinflated the tyres. Hv reduced the pressure to 35 psi / 240kpa since. Next tyre check is in a weeks time, and we will see.....

bobblehead · 01-08-2013, 07:58 AM

That was exactly the same result I had. I can see the middle sections have a slightly higher wear than to either side. That's why I adjust it down to 35

Coincidence of facts

Quote:

Originally Posted by Steel Blue

I ran 36 psi / 250kpa cold for 5000km and this included 4 750km journeys of between 200 - 250km/h speeds. When I recently sent the car in for alignment and tyre rotation, I realised that the middle sections of the Michelin PSS were worn more than the sides. I believe that I may have overinflated the tyres. Hv reduced the pressure to 35 psi / 240kpa since. Next tyre check is in a weeks time, and we will see.....

mindlessmark07 · 01-08-2013, 10:22 AM

36 all the way around for me.

01-06-2013, 08:42 PM	#1
LAKEOM5 Second Lieutenant Drives: 2013 M5 Black Sapphire Join Date: Apr 2012 Location: Lake Oswego, Oregon Posts: 288 iTrader: (0)	Tire Pressure? What are people setting for tire pressure? Front and back? I have the 20's and the manual says 36 if driving under 100mph. 40 if over. I don't plan to go over 100mph that often but will at times. Looking for the optimum level without over inflation. Thoughts?
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01-06-2013, 09:09 PM	#2
dr.skp.ortho Private Drives: 991 911 Carrera S, F10M5 Join Date: Jul 2007 Location: NSW, Australia Posts: 88 iTrader: (0)	I run 280KPa which is 40 PSI. My opinion is to use the highest permissible pressure. __________________ Porsche 991 911 Carrera S BMW F10 M5 Jeep Grand Cherokee 5.7L Hemi V8 Mazda CX5 GT Diesel.

01-07-2013, 08:43 AM	#4
stealth.pilot Knight Commander /// Drives: 2013 M5 Individual Join Date: Aug 2010 Location: South East USA Posts: 2,355 iTrader: (0)	I run 37 on all wheels. __________________ 2013 ///M5 Individual Monte Carlo Blue, Platinum Full Individual Merino, Platinum Alcantara, Piano Black, Exec Pkg, Drivers assistance pkg, Bang and Olufsen, 20" wheels Eisenmann Sport Exhaust, Bel STiR+, Laser Interceptor QUAD HP, Zaon MRX

01-08-2013, 10:22 AM	#7
mindlessmark07 Lieutenant Drives: 2013 F10 M5 Join Date: Dec 2012 Location: Orange County CA Posts: 454 iTrader: (0)	36 all the way around for me. __________________ MindlessMark07 ///2013 M5 Alpine White/Black,Orange County CA\\\

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01-07-2013, 08:27 AM	#3
bobblehead Colonel Drives: warp speed Join Date: Aug 2009 Location: Toronto, On Posts: 2,550 iTrader: (0)	35 square

01-08-2013, 07:41 AM	#5
Steel Blue New Member Drives: 2013 F10 M5 Join Date: Aug 2012 Location: Singapore Posts: 29 iTrader: (0)	I ran 36 psi / 250kpa cold for 5000km and this included 4 750km journeys of between 200 - 250km/h speeds. When I recently sent the car in for alignment and tyre rotation, I realised that the middle sections of the Michelin PSS were worn more than the sides. I believe that I may have overinflated the tyres. Hv reduced the pressure to 35 psi / 240kpa since. Next tyre check is in a weeks time, and we will see.....