Cold Rubber
Thread Starter
Le Mans Master
Joined: Jul 2004
Posts: 5,040
Likes: 939
From: Bonney Lake Washington
Cold Rubber
Out here in the PNW it's gotten clear and cold.....and my low tire pressure warning came on this morning....the suckers had lost about 4 psi each....poor car....
Racer
Joined: Apr 2008
Posts: 373
Likes: 2
From: White Plains NY
I dont mean to hijack the thread but I have a related question. At a ambient temp of 15 to 20 degrees I top the tyres off at 30 psi then I drive for an hour or so at 70+ mph and the ambi temp. starts to rise to lets say to 30 to 35 degrees what will my tyre pressure be and will it trigger a over inflation warning? Hmm... the question sounds like an old math test question from middle school. if a train is traveling .....
thanks,
Mike
thanks,
Mike
Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
I dont mean to hijack the thread but I have a related question. At a ambient temp of 15 to 20 degrees I top the tyres off at 30 psi then I drive for an hour or so at 70+ mph and the ambi temp. starts to rise to lets say to 30 to 35 degrees what will my tyre pressure be and will it trigger a over inflation warning? Hmm... the question sounds like an old math test question from middle school. if a train is traveling .....
thanks,
Mike
thanks,
Mike
With the info you have provided though, air pressure would go up 1-2 psi. Nothing to be concerned with.
Racer
Joined: Apr 2008
Posts: 373
Likes: 2
From: White Plains NY
Mike
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Le Mans Master
Joined: Sep 2008
Posts: 8,022
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From: Stafford VA, home of our wolf den. No house break ins to date.
internal tire pressure rises approx. 4psi after the vehicle has been drive a substantial distance. This pressure is actually the correct pressure decided upon by the O.E. vehicle manufacture and the O.E. tire maker... thats why its clearly stated that you check your tire pressure when the tires are cold. if you must check them when they are hot, add 4 psi to the specified correct pressure number.
Last edited by wolfdogs; Dec 5, 2008 at 09:11 AM.
Racer
Joined: Oct 2006
Posts: 424
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From: WA