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Maximum Tire Pressure?

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Old 03-04-15, 04:41 PM   #1
dbs600
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Default Maximum Tire Pressure?

Anyone know the maximum tire pressure when cold for our vehicles - without damaging our tires?

I have a 2014 IS 350 AWD F Sport with 18” wheels, one wheel of which has a leak and I wonder what’s the most I can fill up same up with.

Thanks!
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Old 03-04-15, 05:05 PM   #2
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Look at the tire itself. My tires usually increase 2-4 psi just with casual driving. So find the max psi rating and subtract maybe 2-4 psi.
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Old 03-04-15, 06:00 PM   #3
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^ agreed. air expands and contracts to due temp, which is why nitrogen is used at some shops (like costco) as they are less prone to such fluctuation.

i would take care of that leak! most america's tire will patch a tire (if patchable) for free! if found not patchable, then either ask to put your spare on, or are forced to buy a tire from them.
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Old 03-04-15, 07:32 PM   #4
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Quote:
Originally Posted by timmy0tool View Post
^ agreed. air expands and contracts to due temp, which is why nitrogen is used at some shops (like costco) as they are less prone to such fluctuation.

i would take care of that leak! most america's tire will patch a tire (if patchable) for free! if found not patchable, then either ask to put your spare on, or are forced to buy a tire from them.
Still fluctuates or my meter sucks!
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Old 03-04-15, 07:43 PM   #5
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Old 03-05-15, 06:53 PM   #6
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whoa never knew this! good find!
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Old 03-05-15, 09:55 PM   #7
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Thanks for the replies everyone, but you have misunderstood my question.

I'd like to know the maximum pressure I can fill our tires to without damage.

I'm overinflating knowing there's a leak, so I can fill once a day instead of twice.

Been through hell; not as simple as a patch; not the tire, but the rim; don't ask.

So, for example, is 48 p.s.i. when cold too much?

Not asking for specs on door jamb.
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Old 03-06-15, 08:56 AM   #8
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Quote:
Originally Posted by dbs600 View Post
Thanks for the replies everyone, but you have misunderstood my question.

I'd like to know the maximum pressure I can fill our tires to without damage.

I'm overinflating knowing there's a leak, so I can fill once a day instead of twice.

Been through hell; not as simple as a patch; not the tire, but the rim; don't ask.

So, for example, is 48 p.s.i. when cold too much?

Not asking for specs on door jamb.
Refer to my first reply and read it again.

Quote:
Look at the tire itself. My tires usually increase 2-4 psi just with casual driving. So find the max psi rating and subtract maybe 2-4 psi.
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Old 03-06-15, 01:15 PM   #9
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Quote:
Originally Posted by drbazing View Post
Refer to my first reply and read it again.
Thanks again, but I'm not referring to the ratings on the doors.

I'm asking if there's any safe limit above and beyond same.

Also, what does over inflation do; excess tire wear?
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Old 03-06-15, 01:25 PM   #10
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Quote:
Originally Posted by dbs600 View Post
Thanks again, but I'm not referring to the ratings on the doors.

I'm asking if there's any safe limit above and beyond same.

Also, what does over inflation do; excess tire wear?
I think he's telling you to look at your tire, not the door, and subtract from the max psi listed on the tire itself. Mine says max psi 51.
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Old 03-06-15, 02:38 PM   #11
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Quote:
Originally Posted by dbs600 View Post
Thanks again, but I'm not referring to the ratings on the doors.

I'm asking if there's any safe limit above and beyond same.

Also, what does over inflation do; excess tire wear?
Different brand tires have different rating. Bridgestone Turanza that came with car max PSI is at 51. Then subtract about 4 psi for giving some room when tires get hot.
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