Originally Posted By: CapriRacer
The first step is to look in the owners manual. What limitations does the vehicle manual place on the vehicle? What does the manual say about tire pressures?
In this case, I'm going to guess it says that the trailer is too large for the truck - but there is the possibility that it is marginal. I'm also going to guess that the vehicle has P metric tires and the vehicle tire placard says 35 psi.
If I understand this correctly, what is listed on the vehicle tire placard is adequate for the max conditions - SO - the tires will be either overloaded or marginal - and no amount of additional pressure is going to change that.
I understand most P tires are rated for max load at 35 psi even when rated for 51 psi max. Why are some OE cars calling for 44 psi on the placard for example, if it make no difference in going over 35 in load capacity for occasional heavy loads a vehicle is capable of carrying? Even though not specifically stated in load/inflation tables, I find it hard to believe that adding a little extra air would not be a benefit
The first step is to look in the owners manual. What limitations does the vehicle manual place on the vehicle? What does the manual say about tire pressures?
In this case, I'm going to guess it says that the trailer is too large for the truck - but there is the possibility that it is marginal. I'm also going to guess that the vehicle has P metric tires and the vehicle tire placard says 35 psi.
If I understand this correctly, what is listed on the vehicle tire placard is adequate for the max conditions - SO - the tires will be either overloaded or marginal - and no amount of additional pressure is going to change that.
I understand most P tires are rated for max load at 35 psi even when rated for 51 psi max. Why are some OE cars calling for 44 psi on the placard for example, if it make no difference in going over 35 in load capacity for occasional heavy loads a vehicle is capable of carrying? Even though not specifically stated in load/inflation tables, I find it hard to believe that adding a little extra air would not be a benefit