Tire Pressure Vs. Ambient
I recently found that adjusting our tires to the cold inflation temperature base on the local ambient may not be the correct way to do this. Based on this info, the ambient temp for setting tire pres...
Forum Discussion
I have a TPMS system.
I have found all 10 of my sensors read within 2 psi of each other.
I set my pressures in early morning inside my shop building. As such all tires will be at the same temperature.
I then check the pressures with the TPMS. I try to get all pressures the same for each axle.
Now the most important thing is that all pressures on each axle is the same each morning before the sun hits any of the tires.
Then after on the road for 10 miles or more all pressures for tires on each axle should be (and I have found it to be true) the same within 2 psi.
If I see any pressures that are different by more than 2 psi compared to my early morning check then I find a safe place to get off the highway and try to determine why I have a pressure difference.
With the TPMS no need to use a gauge except when setting initial pressures. The TPMS may not be totally accurate but I have found they are very consistent from day to day.
I have found all 10 of my sensors read within 2 psi of each other.
I set my pressures in early morning inside my shop building. As such all tires will be at the same temperature.
I then check the pressures with the TPMS. I try to get all pressures the same for each axle.
Now the most important thing is that all pressures on each axle is the same each morning before the sun hits any of the tires.
Then after on the road for 10 miles or more all pressures for tires on each axle should be (and I have found it to be true) the same within 2 psi.
If I see any pressures that are different by more than 2 psi compared to my early morning check then I find a safe place to get off the highway and try to determine why I have a pressure difference.
With the TPMS no need to use a gauge except when setting initial pressures. The TPMS may not be totally accurate but I have found they are very consistent from day to day.
