Rollochrome wrote:
My Carlisle CSL 16's have a cold max pressure of 110.
I installed a TPMS the same day I bought them.
I read up on these tires and there was nothing about a hot max pressure from Carlisle. I contacted Carlisle and they said there was no "hot max" specified.
So on the maiden voyage with them, I watched the temps rise and rise above 110 to just under 120.
The tires on the sunny side were uniformly higher than the ones in the shade side understandably too.
I read elsewhere that a different manufacturer emphatically states on their website regarding trailer tires to NEVER bleed down HOT tires.
So it begs the question, how much hot pressure is too much? The TPMS system instructs to set alert levels that are pretty high.
What do you think is an acceptable pressure level hot relative to the cold max?
I've seen temps on my fully-inflated E range tires approaching 150 on the sunny side, and that was loaded to well below the 11,360 GVW on my old Komfort, which was placarded for D tires. I run +/- 62 mph, so speed's not an issue. These tires are built for this, so just run 'em and check them daily. Get a temp gun and check them first thing when you stop. Check your truck tires, as well, and don't forget the hubs.
Also, if you tend to run well below your GVW, personally, I'd have zero issues with running at 100 psi. With the above-mentioned Komfort, I'd run 70-75 psi most of the time and only go to 80 when I was heavily loaded. Given that the rig was placarded for 65 psi D tires, I was well within load specs.
Lyle
