PSI when using higher load range tires.
My trailer had 4, D load range tires. From advice of many friends I've up graded to E load range. Just got a set of Good Year Endurance with max PSI of 80. Previous tires and trailer sticker says PSI ...
Forum Discussion
I also went from D to E rated tires on two trailers. My process
a) checked the max load and psi rating on the rims 80psi
b) made sure metal valve stems were installed instead of rubber
c) trailers had D rated tires and psi spec on the trailer placard was 65psi
d) I inflate to 75psi
Now with car/truck tires tire mfg or vehicle mfg state tire pressure requirements. On ST trailer tires many of the mfg recomend running at or near the max psi on trailers unless you have gone up several load ratings.
Done the 75psi now for several sets of tires, no unusual tire wear. Radial tires are pretty insensitive to tire pressure on tread wear issue unlike bias ply tires where under/over inflation affected center vs. side wear patterns.
As for the X psi above actual load, do a calculation on your TV recomended psi vs actual tire load. In many cases you'll find the recomended tire pressure is WELL above actual load on the axles even at max load.
a) checked the max load and psi rating on the rims 80psi
b) made sure metal valve stems were installed instead of rubber
c) trailers had D rated tires and psi spec on the trailer placard was 65psi
d) I inflate to 75psi
Now with car/truck tires tire mfg or vehicle mfg state tire pressure requirements. On ST trailer tires many of the mfg recomend running at or near the max psi on trailers unless you have gone up several load ratings.
Done the 75psi now for several sets of tires, no unusual tire wear. Radial tires are pretty insensitive to tire pressure on tread wear issue unlike bias ply tires where under/over inflation affected center vs. side wear patterns.
As for the X psi above actual load, do a calculation on your TV recomended psi vs actual tire load. In many cases you'll find the recomended tire pressure is WELL above actual load on the axles even at max load.
