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MorMJS's avatar
MorMJS
Explorer
Jul 29, 2014

Cold tire pressure question?

My dual axle TT has Westlake ST205/75R14 with NitroFill tires on it. It calls for "COLD" tire pressure of 50psi
I brought my TT home out of storage today to get ready for a trip and measured air pressure this afternoon and it read the following:
Street side- 38psi front, 45 rear
Curb side- 47 front, 46 rear
I wont have time to have them nitro filled before we leave this weekend so regular air is gonna have to do, but what pressure should these guys read in mid-day heat?

22 Replies

  • ktmrfs's avatar
    ktmrfs
    Explorer III
    I suspect the 38 psi tire is just low compared to the others. air them up to what the side of the trailer recomends for pressure of 50 psi. "Cold" is by definition, not a set temperature, but a tire that has had time to cool off from being driven on. BTW your going to fill them with 75% nitrogen anyway.