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Hi, I wanted to ask for a bit of advice about hot tyres and increased tyre pressures. To many of you this might seem an obvious question, but it bothered me this year in France, so I thought I’d ask.
I’ve got a Bailey with the TyrePal monitoring sensors fitted into the tyres. The cold pressure of the tyres should be 60psi. I also have monitors fitted to my car, a Hyundai Santa Fe.
The monitor allows you to set your maximum and minimum tyre pressures and tyre temperatures. It then sounds an alarm when those settings are exceeded. I set up the monitor and all was fine. I checked the monitor against two different types of tyre pressure gauge and it was very accurate. Excellent, I thought. Off to France.
Within an hour of leaving Calais, the temperature rose and the sun came out. Ten minutes later, the alarms sounded as the tyre pressure exceeded 65psi. The tyre temperature had also risen. We travelled around quite a lot & over the fortnight, the pressure peaked at 71psi, with morning cold pressure was always 59-60psi. Tyre temperatures reached 42 deg. All the time, my car tyres didn’t change much at all.
My question is, is it normal to see an increase of 10/12 psi (about 20%) as the tyres warm up? Also, is a tyre still OK at 40deg? If not, has anyone any suggestions for what to do?
Thanks very much.
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Topic: Caravan Tyre Pressure & Temps
