TPMS Alert: Tire Pressure Too High?
Loaded up last week in Louisville, ambient temps in the 70's and headed for FL. The LT225/75-16E tires on the TT set to 75 psi. Down I-65 through AL with ambient temps in the 90's...pavement so ho...
Forum Discussion
I'm no expert, but I would guess that too high of a pressure is just as bad as too low. Both will wear the tire abnormally I would think at a minimum, blowout at a maximum.
That said, I am sure there is some safety margin built into tires for this, though I couldn't tell exactly how long you were running them for, I personally wouldn't be worried that they are damaged somehow. After a thorough visual inspection anyways. Thats just me though, its up to you how to handle your situation.
I am surprised the tire pressures went up so much though. My tires, albeit running at a lower range than yours might jump up 2 or 3 psi on a normal day, 5 or so on an extremely hot day. Yours were up almost 15 psi and 20 psi. Seems excessive. But maybe thats because the nominal is so high to start with?
I did a search and there is some info out that that says 1 psi per every 10 degrees, I believe on cold inflation, and up to 5 psi once driving and warmed up. I'm sure this info relates to passenger tires, not sure what it means for LT tires.
That said, I am sure there is some safety margin built into tires for this, though I couldn't tell exactly how long you were running them for, I personally wouldn't be worried that they are damaged somehow. After a thorough visual inspection anyways. Thats just me though, its up to you how to handle your situation.
I am surprised the tire pressures went up so much though. My tires, albeit running at a lower range than yours might jump up 2 or 3 psi on a normal day, 5 or so on an extremely hot day. Yours were up almost 15 psi and 20 psi. Seems excessive. But maybe thats because the nominal is so high to start with?
I did a search and there is some info out that that says 1 psi per every 10 degrees, I believe on cold inflation, and up to 5 psi once driving and warmed up. I'm sure this info relates to passenger tires, not sure what it means for LT tires.
