Tpms pressure reading

[TomatoMan]

I have the tst507 tpms and inflate my Goodyear endurance tires to 65 lbs. cold. I see that when driving as tire heats up usually 10 degrees above ambient air temp that tire pressure increases to as much as 82 lbs. should I be concerned and pull over to let the tires cool or is ok to keep going?

[lbrjet]

You may want to ask your question to Goodyear. 82 seems high to me.

[wszApex245]

You will find your tires run 5-12 degrees warmer than ambient temperatures based on the time of day and the sun or shade on the tires. Under heavy braking such as in the mountains, the temperature can rise as high as 20 degrees above the ambient temperature. Stopping at times like this are not good, especially if you have aluminum wheels. Aluminum wheels will transfer the heat from the hubs, bearings, and brakes while running by having the wheels spin like a fan.

I have never seen pressures higher than 17 psi above the days beginning pressure. Not sure this will hold true if I get into an area with temperatures above 110 degrees.

Attached is a screenshot of my TPMS in the deserts of Nevada in July.

[The Evil Twin]

Originally Posted by TomatoMan

I have the tst507 tpms and inflate my Goodyear endurance tires to 65 lbs. cold. I see that when driving as tire heats up usually 10 degrees above ambient air temp that tire pressure increases to as much as 82 lbs. should I be concerned and pull over to let the tires cool or is ok to keep going?

There are a ton of variables. What was the tire temp when you set the pressure? What is the tire temp when they are 82 psi? What is the sidewall pressure spec? Blacktop or concrete? Northern roads or southern? Humidity when the tires were aired up.... the list goes on.
Mine go up by 20 psi regularly and often hit 140* in the southern heat. If you set the pressure to sidewall and it was 20* cooler ambient I would not worry.

[glwhitetail]

Originally Posted by wszApex245

You will find your tires run 5-12 degrees warmer than ambient temperatures based on the time of day and the sun or shade on the tires. Under heavy braking such as in the mountains, the temperature can rise as high as 20 degrees above the ambient temperature. Stopping at times like this are not good, especially if you have aluminum wheels. Aluminum wheels will transfer the heat from the hubs, bearings, and brakes while running by having the wheels spin like a fan.

I have never seen pressures higher than 17 psi above the days beginning pressure. Not sure this will hold true if I get into an area with temperatures above 110 degrees.

Attached is a screenshot of my TPMS in the deserts of Nevada in July.

Which tpms system do you have?

[TitanMike]

Originally Posted by glwhitetail

Which tpms system do you have?

Fourth word in the OP's opening statement.

[glwhitetail]

Originally Posted by TitanMike

Fourth word in the OP's opening statement.

Thanks, but you will notice I was replying to wszApex245 post. As his has an app on his phone reporting tire pressures..

[rsdata]

I see that when driving as tire heats up usually 10 degrees above ambient air temp that tire pressure increases to as much as 82 lbs. should I be concerned and pull over to let the tires cool or is ok to keep going?

Look for consistency from tire to tire... both left tires should be about the same, and both left tires should be about the same both in temp and pressure... this side to side accounts for differences in whether the tires are in sun or shade which makes a big difference in the summer.

82# would not scare me if at least that same side tire pressure was within 1 or 2 pounds ( accounting for differences in the sensors).

[TomatoMan]

Thanks for the reply, yes all 4 tires are within 1-2 lbs of the one high At 82 lbs

[wszApex245]

glwhitetail, I run BLU Technology.