Load e tire pressure
Stupid question. Dealer had to replace one tire on my new camper. Now I have 3 Towmax 225/75/15 load D ST tires and one Load E. Load E usually need 80lbs pressure but should I keep it at 65lbs same as...
Forum Discussion
Best is to keep the E-load on a bit higher pressure then the D-load.
In the lists you will find in America its is given same loadcapacity for the same pressure of 65 psi, but to laws of nature , the E-load needs a bit higher pressure for the same load.
Thats because E-load is stiffer tire so smaller surface on the road at the same deflection.
I know that adviced is to keep the tires on one ( imaginary) axle at the same pressure , but this small difference of about 5 psi will not be noticed as a problem when measured.
I can also calculate the needed pressure for you for both tires.
Then need the maximum load and that maxloadpressure ( E=80 psi D=65 psi, but written on sidewall with AT ) Also speedcode of tire or if they are ST tires ( max speed 65m/104km/h)
Also the GAWR and GVWR, or better weighed wheel(pair) loads in the way you use the traveltrailer.
Then I can give the real pressure difference , now I estimated it at 5 psi.
In the lists you will find in America its is given same loadcapacity for the same pressure of 65 psi, but to laws of nature , the E-load needs a bit higher pressure for the same load.
Thats because E-load is stiffer tire so smaller surface on the road at the same deflection.
I know that adviced is to keep the tires on one ( imaginary) axle at the same pressure , but this small difference of about 5 psi will not be noticed as a problem when measured.
I can also calculate the needed pressure for you for both tires.
Then need the maximum load and that maxloadpressure ( E=80 psi D=65 psi, but written on sidewall with AT ) Also speedcode of tire or if they are ST tires ( max speed 65m/104km/h)
Also the GAWR and GVWR, or better weighed wheel(pair) loads in the way you use the traveltrailer.
Then I can give the real pressure difference , now I estimated it at 5 psi.
