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Gsport's avatar
Gsport
Explorer
Aug 27, 2014

Those with tire pressure monitoring systems..

Those that have tire pressure monitor systems, if you air up to max, say 80psi or in my case 110psi. on a cold tire, On a trip how much of an increase can I expect in tire pressure after driving all day??

22 Replies

  • I made a spreadsheet for it to calculate .
    But going from the average of outside temp of 65 degr F and inside tire temperature when driving normally of 112 degr F the pressure will rise about 10% from cold ( 65 dgr) to warm ( 112 degr) .
    This means that your 110psi wil get 121 psi ( about) and 80 cold will get 88 psi.

    Motorhome pressure calculator map with pressurecalculationwithtemp spreadsheet

    With given spreadsheet you can calculate it for every situation pretty accurate.
    First download by RIGHT-CLICKINGand then choose DOWNLOAD , then after download to your computer and eventual virus-check , open in Excell programm on your computer, but Open office CALC can handle it to.
  • I don't have the experience with 80 or 110 psi, but at 55 and 65 psi, seems like I see a 5 to 8 psi increase and up to about 10 degree increase.