Tire PSI
Is there anyone that has any real info on tire psi. I have talked with people I bought the tires from and looked on internet and still don't know the right answer . My sidewalls on truck and 5th wheel...
Forum Discussion
The trailers tires are very simple.
I like this 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 (20psi+), often referred to as the ‘basketball effect’. If this is your situation allow a 10 – 15psi safety margin above the minimum required inflation pressure.**
Truck tires don't operate in the same environment as do the trailers tires so we can use psi for the load carried.
My 2500 Dodge/Cummins for example has LT265/70-17 E tires. I've weighed my trucks axle empty and loaded so I know how much psi they need.
65 psi in the front when towing or running empty.
In the rear 70 psi works best carrying a max axle load and 45 psi when empty. As I said these are my figures and won't work for everyone.
Weigh the trucks front and rear axle before and after hooking the trailer. Then use the tire mfg pressure chart for your size tires.
I like this 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 (20psi+), often referred to as the ‘basketball effect’. If this is your situation allow a 10 – 15psi safety margin above the minimum required inflation pressure.**
Truck tires don't operate in the same environment as do the trailers tires so we can use psi for the load carried.
My 2500 Dodge/Cummins for example has LT265/70-17 E tires. I've weighed my trucks axle empty and loaded so I know how much psi they need.
65 psi in the front when towing or running empty.
In the rear 70 psi works best carrying a max axle load and 45 psi when empty. As I said these are my figures and won't work for everyone.
Weigh the trucks front and rear axle before and after hooking the trailer. Then use the tire mfg pressure chart for your size tires.
