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Operating Pressure and Temperature for Travel Trailer Tires  

Question:

What is the max temperature for travel trailer tires? Trailer tire max pressure?

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Expert Reply:

Trailer tires always indicate their rated psi-pressure on the sidewall. Trailer tires should ALWAYS be inflated to this COLD psi rating under all conditions. It is never appropriate to under- or over-inflate a trailer tire for any reason, such as to compensate for extremes of temperature. Any inflation pressure other than the rated maximum will tend to lead to the tire overheating, and overheating is the single most-common cause for trailer tire failure.

The tire you referenced, part # TTWTRTM2257515D, is to be inflated to 65-psi cold pressure.

The actual operating temperature of a trailer tire will vary quite a bit based on weather, (inflation, as noted), driving speed and the actual weight load on it. For every 10 degrees of ambient temperature change a trailer tire's inflation pressure will vary by about one pound. So if you started out in the morning with cold tires inflated to the correct pressure and stopped midday when the temperature was 30-degrees warmer than it was in the morning, then your tires would show about 3-psi more pressure.

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Adam R
John D. profile picture

John D.

8/12/2024

I have Goodyear Endurance ST 205/75R15 tire on my 7000lb max trailer, after 3 hr travel time my TPMS shows an increase of 8-10 PSI an temps up to 131-133 I have talked to Goodyear and they say their is no temperature waiting on these tires. I am slightly concerned with the high temp on these tires does all this sound ok?

JesseM profile picture
Etrailer Expert

Jesse M.

8/13/2024

@JohnD It is completely normal for the PSI and temperature of tires to increase while driving. Generally you will see an increase of 1 PSI for every 10 degrees. 133 degrees sounds pretty normal for tires during the summer. We generally tell folks that anything over 165 or 170 degrees is starting to get into the danger zone. So everything you are saying sounds fine and safe.
John profile picture

John

8/13/2024

@JesseM Thanks for the assurance

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