Tire inflation
Got E rated tires installed, 80psi max, Tire guy said it would be better to run around 65-70 psi as tires heat up. Always thought I should run max cold rating 80psi. FW weight is around 9000 lbs hooke...
Forum Discussion
"Unless trying to resolve poor ride quality problems with an RV trailer, it is recommended that trailer tires be inflated to the pressure indicated on the sidewall of the tire. Trailer tires experience significant lateral (side-to-side) loads due to vehicle sway from uneven roads or passing vehicles. Using the inflation pressure engraved on the sidewall will provide optimum load carrying capacity and minimize heat build-up."
I have talked to GY tech Support. They will not tell you to run anything different than what the RV mfg recommends. The fact is most all RV companies Max out each set of tires and do require max PSI.
Now for example the newer Mobile Suites come with GY 17.5H tires and they don't have to be inflated to MAX because they have about 1.000# extra capacity on their tires.
I ran the original GY G's at 95-100 psi because the load did not require 110 MAX load. Tires wore perfectly even never a problem. Changed those tires out to GY H 17.5's I don't run 120# MAX I run 105 because my load has increased over time.
When talking to GY Tech about up sizing they said to weigh your axles or better weigh each tire then use the Weight/inflation guide to determine psi required then add 5psi to that number based on the heaviest tire on each axle.
So when a tire maker tells you to run MAX psi it's because the vast majority of the time the tires need it and it's a CYA for the tire company since the RV maker is responsible for the load they are rating for each RV.
The tech person said NOT to overinflated the tires since it will cause you to have less stopping traction and wear the center of the tires out.
I have talked to GY tech Support. They will not tell you to run anything different than what the RV mfg recommends. The fact is most all RV companies Max out each set of tires and do require max PSI.
Now for example the newer Mobile Suites come with GY 17.5H tires and they don't have to be inflated to MAX because they have about 1.000# extra capacity on their tires.
I ran the original GY G's at 95-100 psi because the load did not require 110 MAX load. Tires wore perfectly even never a problem. Changed those tires out to GY H 17.5's I don't run 120# MAX I run 105 because my load has increased over time.
When talking to GY Tech about up sizing they said to weigh your axles or better weigh each tire then use the Weight/inflation guide to determine psi required then add 5psi to that number based on the heaviest tire on each axle.
So when a tire maker tells you to run MAX psi it's because the vast majority of the time the tires need it and it's a CYA for the tire company since the RV maker is responsible for the load they are rating for each RV.
The tech person said NOT to overinflated the tires since it will cause you to have less stopping traction and wear the center of the tires out.
