Tire pressure, question on increase.
14,500 lb loaded trailer, Around 11,200 on 4 tires (7,000 lb axles). Goodyear G614 tires, about 3 years, 7000 miles on them. Ambient temperature: 78 degrees. After running 1 hour on mixed h...
Forum Discussion
CapriRacer wrote:
Rule of Thumb:
There should be no more than a 10 percent increase in pressure.
Since you've got 12 percent, that's just a bit too much. You should seriously consider using more inflation pressure - or a larger size tire - somehow raise the load carrying capacity. Or you could slow down.
Please note: 10 percent is not a target. It is a max.
The 215/75R17.5 Goodyear G114 Unisteel fitted under heavy 5th wheels such as our 19000 lb GVWR Mobile Suites is rated 4805 lbs @ 125 PSIG. It routinely runs at 142 to 145 PSIG after a few hours on the Interstate at 65 MPH. That pressure increase is not just my experience - it's been confirmed by a number of other individuals using this tire here on this forum. Pulling off the Interstate into a rest stop, I can still lay my hand comfortably on the tread.
Rusty
