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What is your preffered tire inflation pressure?

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Old Sep 17, 2008 | 10:30 PM
  #1  
FxStuntDriver's Avatar
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From: Vancouver, BC, Canada
Mercedes 500 CLK
Exclamation What is your preffered tire inflation pressure?

Hey gang,

What is the max cold pressure you keep your tires inflated at .
Would be interesting to post the following:

1) Tire Make
2) Tire Size (Front/Back)
3) Tire sidewall max PSI (tire manufacturer recommendation)
4) Car manufacturer (door sill or owner manual) recommended PSI
5) Your actual tire PSI
6) Do you have in gloves compartment a Tire Pressure Gauge

Last edited by FxStuntDriver; Sep 17, 2008 at 10:32 PM.
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Old Sep 17, 2008 | 10:55 PM
  #2  
da_guitarist's Avatar
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From: Atlanta
Current: AMG GT-C. Sold: 01 CLK55, 00 ML55, 01 ML55, 06 E55
wow...

1) Toyo T1R
2) 235/35/19 275/30/19
3) 50 psi i think
4) 33-35
5) 38-40
6) YES!
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Old Sep 18, 2008 | 11:56 PM
  #3  
FxStuntDriver's Avatar
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From: Vancouver, BC, Canada
Mercedes 500 CLK
Hmmm ... interesting. As of today more than 30 views of this post, yet only one forum member bothered to answer.

Somehow surprising for a forum auto.

It is known that 85% of the drivers have no idea what is the ideal tire pressure and 95% of the drivers do not check the tires unless they have a flat.
Yet is a common knowledge that improper tire inflation can have catastrophic consequences.

Every year in N. America more that 20,000 crashes related to improper tire inflation, yet the honorable members of this forum do not think this is a relevant subject.

Kind of sad friends, kind of sad!!!

FxSD
Reply
Old Sep 19, 2008 | 01:53 PM
  #4  
Luke@tirerack's Avatar
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From: SouthBend, IN USA
depends on the weather
Originally Posted by FxStuntDriver
Hey gang,

What is the max cold pressure you keep your tires inflated at .
Would be interesting to post the following:

1) Tire Make Bridgestone Potenza RE01R currently
2) Tire Size (Front/Back) 225/45-17 & 255/40-17
3) Tire sidewall max PSI (tire manufacturer recommendation) 51psi but it is not a recommendation as tire manufacturers do not offer PSI recommendations based on a tire because PSI recommendatyions are based on the vehicle, its' use and its' weight
4) Car manufacturer (door sill or owner manual) recommended PSI 36psi F&R
5) Your actual tire PSI 32psi front 40 psi rear at this time since I haven't changed it since last weekends AutoX
6) Do you have in gloves compartment a Tire Pressure Gauge 3 of them actually
answered

Last edited by Luke@tirerack; Sep 19, 2008 at 05:05 PM.
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Old Sep 19, 2008 | 04:44 PM
  #5  
Hokie1200's Avatar
Member
 
Joined: Jan 2008
Posts: 105
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From: Atlanta
2004 C230 Kompressor Sport sedan 6 speed manual, 2013 S550 Sport 20" AMG
Originally Posted by FxStuntDriver
Hey gang,

What is the max cold pressure you keep your tires inflated at .
Would be interesting to post the following:

1) Tire Make
2) Tire Size (Front/Back)
3) Tire sidewall max PSI (tire manufacturer recommendation)
4) Car manufacturer (door sill or owner manual) recommended PSI
5) Your actual tire PSI
6) Do you have in gloves compartment a Tire Pressure Gauge
1. Goodyear Eagle F1 A/S
2. 17", 225/45 and 245/40
3. 44 psi?
4. 29 F / 30 R
5. 38 F / 36 R
6. Yes

Question: Does slightly lower air pressure in the rear tires help understeer? Or is this only a concern for race cars?
Reply
Old Sep 19, 2008 | 05:03 PM
  #6  
Luke@tirerack's Avatar
TR Moderator & Tire God
 
Joined: Nov 2001
Posts: 3,545
Likes: 5
From: SouthBend, IN USA
depends on the weather
in am F/R chassis car having the rear tire pressure set lower than the front helps to reduce understeer
Reply
Old Sep 19, 2008 | 05:13 PM
  #7  
Hokie1200's Avatar
Member
 
Joined: Jan 2008
Posts: 105
Likes: 0
From: Atlanta
2004 C230 Kompressor Sport sedan 6 speed manual, 2013 S550 Sport 20" AMG
If I run 92Y XL front and 94Y XL rear (Pirelli PZero Nero, 220 treadwear), what would be the recommended pressure to ensure good wear and performance?
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Old Sep 21, 2008 | 04:16 AM
  #8  
ejsheltra's Avatar
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Joined: May 2008
Posts: 1,072
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From: Pittsburgh,PA, Cambridge, Ontario, CN
2003 S210 3.8L Brabus wagon
Yokohama s drive 245-40-18 frt, 35psi. 275-35-18 rr, 32psi on 02 E55
General Exclaim 245-40-18 frt, 35psi. 275-35-18 rr, 32 psi on 03 S210 wagon
Psi gauge in each glove box and checked monthly if used along with spare. Wife has been caught with deflated spare. Both of th above on stagger 8.5 frt and 9.5 rear wheels.
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Old Oct 2, 2008 | 02:42 PM
  #9  
GotDaBenz's Avatar
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I check and adjust my pressure often. Door panel on C Class says 28F, 32R so that's about where I keep it. Tire sidewall max pressures are usually way too high for everyday driving.
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Old Oct 5, 2008 | 08:37 AM
  #10  
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I checked and adjusted the pressures yesterday; I keep them at 29F/33R; it says 28/33 on the door panel.
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Old Oct 5, 2008 | 03:02 PM
  #11  
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From: Denmark
C270T CDi
Originally Posted by FxStuntDriver
Hey gang,

What is the max cold pressure you keep your tires inflated at .
Would be interesting to post the following:

1) Tire Make
2) Tire Size (Front/Back)
3) Tire sidewall max PSI (tire manufacturer recommendation)
4) Car manufacturer (door sill or owner manual) recommended PSI
5) Your actual tire PSI
6) Do you have in gloves compartment a Tire Pressure Gauge
Michelin Exalto PS3
245/40 17 - Ditto
60 Psi
31 Psi
38 - 40 Psi
Yes.
Reply
Old Feb 8, 2010 | 09:11 PM
  #12  
walterk55's Avatar
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Joined: Jul 2009
Posts: 157
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From: Mamaroneck, NY
1996 C280, 2010 E350 Previous: '52 300 Adenaeur, '59 220 S, '94 C180, '03 C320 4-Matic Sport
Smile

I am running 16" CLK staggered wheels on a c-320 W203

1. Cooper CS4
2. 205/55/16 Front 225/50/16 Rear
3. 50 psi
4. 29 F 32 R
5. 31 F 33 R
6. Yes

Cooper CS4 are for people who want a smooth comfortable ride with good road handling wet or dry.
Reply
Old Feb 9, 2010 | 07:46 PM
  #13  
Mka77's Avatar
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From: Witness Protection Program
06 CLK350 -SOLD! 2010 Cadillac SRX Premium Turbo
1) Tire Make - general UHP
2) Tire Size (Front/Back) 235/35/19 - 265/30/19
3) Tire sidewall max PSI (tire manufacturer recommendation) - 50 psi
4) Car manufacturer (door sill or owner manual) recommended PSI - 32 psi all around
5) Your actual tire PSI - F 35 R - 38
6) Do you have in gloves compartment a Tire Pressure Gauge - Yes

Who's next? M
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Old Feb 9, 2010 | 08:25 PM
  #14  
NickZag's Avatar
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Joined: Dec 2009
Posts: 594
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From: CA
no more AMG
Originally Posted by FxStuntDriver
Hmmm ... interesting. As of today more than 30 views of this post, yet only one forum member bothered to answer.

Somehow surprising for a forum auto.

It is known that 85% of the drivers have no idea what is the ideal tire pressure and 95% of the drivers do not check the tires unless they have a flat.
Yet is a common knowledge that improper tire inflation can have catastrophic consequences.

Every year in N. America more that 20,000 crashes related to improper tire inflation, yet the honorable members of this forum do not think this is a relevant subject.

Kind of sad friends, kind of sad!!!

FxSD
You seem to know so much on this topic, yet your the one asking the question
Reply

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