Maximum Tire Pressure?
#1
Lexus Test Driver
Thread Starter
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!
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!
#3
^ 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.
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.
#4
^ 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.
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.
#7
Lexus Test Driver
Thread Starter
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.
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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#8
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.
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.
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.
#9
Lexus Test Driver
Thread Starter
#10
Instructor
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.
#12
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That said, over-inflating a tire will wear out the center. Under-inflating wears the edges. If you run the recommended door pressure of 36 on a tire rated for a max of 51, you will buzz the edges right off and/or have uneven tire wear.
I always over-inflate what is recommended by the manufacturer. They are finding a balance between ride and handling. By over-inflating, you give up a little on ride quality, but you gain in handling, fuel economy and tire longevity.
All that said, I just got the car (IS350 AWD F-Sport) and have started at 42 psi. I have a feeling I will be bumping up to 44 but wanted to monitor for a bit and check wear. If you start seeing excess wear in the center (using a gauge), you need to decrease pressure. If you see more wear on the edges, increase.
Anyway, just my $.02
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