What do you run your tire PSI?
I wonder if the TPMS will trigger if too high? I set my CT200h F Sport 215 45 17 tires at 40psi cold and the other day while on a long drive I got the tire warning... I go WTH i just filled the tires to 40 psi. I pull over safely and check it out and nada. tires hard as a rock. I think it may have warmed up to 45+ psi while hot and tripped the sensor. I get back on the freeway, and the tire warning goes away.. presumably cause it cooled down.
Lexus Test Driver
Joined: Mar 2016
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Room temp ish.. around 70 ish. the light hasn't come back since even during warm driving. but i didn't go on the highway again which probably heats it up more due to friction. Could be just a glitch.
Moderator
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From: GA
I overfill by accident a couple years back and I remember something like the TPMS lighting up but I could be wrong. Anyway I was wondering since you live in CA too, if you run 40psi cold, I am assuming that is cold in the morning around 57-59F? If thats the case, how high does the pressure go in the afternoon around 90-100F?
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From: GA
For whatever it's worth, I've been running mine at 36, summer or winter, for over two years now and haven't had anything out of the ordinary happen. Sure, I have the dreaded inner tire wear, but no matter what you do outside of modifications, you are going to have that issue.
Intermediate
Joined: Mar 2017
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From: CA
That seems pretty low. If it works for you, by all means, but I agree with most others on the thread that running at the recommended pressure of 36 or 1-2 above that seems to provide a more responsive driving experience. Also you would get better protection of your wheels with more air between the rims and the road. Your low pressure warning light is off, but that doesn't mean you are running at the best pressure for conditions.
For whatever it's worth, I've been running mine at 36, summer or winter, for over two years now and haven't had anything out of the ordinary happen. Sure, I have the dreaded inner tire wear, but no matter what you do outside of modifications, you are going to have that issue.
For whatever it's worth, I've been running mine at 36, summer or winter, for over two years now and haven't had anything out of the ordinary happen. Sure, I have the dreaded inner tire wear, but no matter what you do outside of modifications, you are going to have that issue.
I did spend about a month to figure out what worked well for my use case, and i've found that driving hard these tires will gain about 6-8psi from whatever cold was. Pushing past 38psi I'd start losing grip. There is no real science to this, but I'd take the same curving route at the same speed and find which setup i could go faster without losing grip or which would result in me fishtailing.
I obviously wouldn't recommend anyone run this low psi on every tire, but for anybody who runs the same tire as me, you can run them at 32psi cold, as i daily them with 32psi cold
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6th Gear
Joined: Feb 2021
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From: Illinois
I maintain a pressures of 35-36 psi on my '16 IS 300 staggered wheel/ tyre setup. The Continental Extreme Contact DWS tyres have a softer sidewall, thus requiring a higher pressure for the steering response I'm accustomed to.
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