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GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

Tire Pressure On 20's

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Old Apr 19, 2010 | 11:38 AM
  #31  
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I always put 36-37 psi only when cold. Cause after 10-20 minutes drive the air will expand another 1-2 psi.
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Old Jan 10, 2017 | 03:49 PM
  #32  
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Default I have 225/30r/20 is the PSI still 35

All 4 tiers are 225/30r/20 should all of the psi be 35
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Old Jan 10, 2017 | 03:54 PM
  #33  
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Originally Posted by rominl
of course it's way high it's almost silly. that's why me myself, i tell people a bit higher psi can provide little more protection, but going too high and it might not be a good idea neither
what's a good psi for all 225/30r/20
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Old Jan 10, 2017 | 09:31 PM
  #34  
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Originally Posted by Temoz25
All 4 tiers are 225/30r/20 should all of the psi be 35
Anything in the 33-40 psi range is fine, so you're fine at 35. Just don't get below 33 psi
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Old Jan 10, 2017 | 10:14 PM
  #35  
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Originally Posted by Temoz25
All 4 tiers are 225/30r/20 should all of the psi be 35
Those are really skinny tires. I'd actually go higher than 35 and do 39 or 40 for more protection.
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Old Jan 11, 2017 | 12:39 AM
  #36  
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Actually the proper way to determine air tire pressure is to contact, or view specs on the tires manufacture. Every tire design is different, the stickers on our vehicles is the tire psi for the oem brand tires at the oem size.

Another way is to look at the tire wear, if your getting outer edge wear then maybe tire pressure is to low, if its on the inside the psi is to high. What Jskyline mentioned is correct cold air psi and tires do expand, so its best to check them cold.
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