What should the PSI be in the trailer?
I have a trailer which has Sailun G rated tires. The maximum PSI of air is listed as 110 PSI. I was carrying 90 PSI but recently was told that the maximum PSI, that is 110 PSI is the amount of air I ...
Forum Discussion
azdryheat wrote:I considered putting "E" rated LT tires on my triple axle toyhauler to replace the Carlisle ST tires that came on it after two of them destroyed themselves at less than 2 years old. I was excoriated by posters who kept insisting you couldn't install tires that were lower rated than what came installed from the factory. I was risking the fate of civilization as we know it.
If your trailer isn't at max weight then why carry max air pressure in the tires, especially a G tire? Air pressure is only for the load being carried. The heavier the load the more psi goes in the tires. At max weight of 19,000 pounds for my trailer, the six tires only carry around 2600 pounds each. I don't need tires rated at over 4,000 pounds. As it is I carry 65-70 psi in my tires because that is what the Michelin chart calls for. 80 psi is not necessary and 110 psi is overkill and can cause damage to the trailer from the rock hard tires. My current tires are coming up on 5 years old, they've been coast-to-coast several times with no issues.
Are guys putting G rated tires on their trucks? My dually has E rated tires and I run 65 psi in the rears, 70 up front when towing per the door sticker.
It came with tires rated to about 3,800 lbs. and I was going to put on tires rated to about 3,050 lbs. HORRORS!! However I had weighed each tire and knew I had a max of 2,500 lbs. on 2 tires and the rest were at 2,000 lbs. It simply wasn't an issue IMO, but facts hold little sway against strong opinions. I ended up with the "G" rated Sailuns as they were a little cheaper than "E" rated LT tires that I considered possible choices.
