80 PSI on Aluminum Wheels
I'm running 225/75/15 D rated tires on aluminum rims inflated to 65 psi. The only GY Endurance tires I find this size are E rated inflated to 80 psi. I do not know anything about these rims other than...
Forum Discussion
Goodyear also says this;
Goodyear Tire and Rubber .... weighing RVs
Special Considerations
*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've also had contact with Goodyear 1-800 and Goodyear truck tire dealer when I had several trailers on the road. All said to use max pressures in their tires on any multi-axle trailer. Trucks and single axle trailers they recommended the minimum pressure charts (psi for the load).
rvtiresafety.com
fiftwheelstreet.com
rvsafety.com
Tireman9
have all recommend max sidewall pressures for tires on a mult-axle trailer.
Truck tires with the wheel at the corners don't operate in the same environment ( sliding sideways while making turns.....weight changes in strong side winds/etc).
Now if the trailer owner has over tired the trailer such as using a 4080-4400 lb load G tire on 5.2/6k axle with 2500-2800 lb load per tire then I like this advise from rvsafety.com
Tire Load and Inflation Ratings
Note: Towable – Travel Trailer/ 5th Wheel owners Due to the severe use conditions experienced by tires when axles are very close together – tire industry experts recommend maximum (sidewall) inflation pressure for towable tires unless this causes a sever over-inflation situation (20 psi+), often referred to as the ‘basketball effect’. If this is your situation allow a 10 – 15psi safety margin above the minimum required inflation pressure.
Never heard of derating a tire on a multi-axle trailer till I became a member of a rv forum.
Goodyear Tire and Rubber .... weighing RVs
Special Considerations
*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've also had contact with Goodyear 1-800 and Goodyear truck tire dealer when I had several trailers on the road. All said to use max pressures in their tires on any multi-axle trailer. Trucks and single axle trailers they recommended the minimum pressure charts (psi for the load).
rvtiresafety.com
fiftwheelstreet.com
rvsafety.com
Tireman9
have all recommend max sidewall pressures for tires on a mult-axle trailer.
Truck tires with the wheel at the corners don't operate in the same environment ( sliding sideways while making turns.....weight changes in strong side winds/etc).
Now if the trailer owner has over tired the trailer such as using a 4080-4400 lb load G tire on 5.2/6k axle with 2500-2800 lb load per tire then I like this advise from rvsafety.com
Tire Load and Inflation Ratings
Note: Towable – Travel Trailer/ 5th Wheel owners Due to the severe use conditions experienced by tires when axles are very close together – tire industry experts recommend maximum (sidewall) inflation pressure for towable tires unless this causes a sever over-inflation situation (20 psi+), often referred to as the ‘basketball effect’. If this is your situation allow a 10 – 15psi safety margin above the minimum required inflation pressure.
Never heard of derating a tire on a multi-axle trailer till I became a member of a rv forum.
