asked by: Denis B
Expert Reply:
When inflating trailer tires the recommendation is to inflate the tire to the max tire pressure listed on the sidewall when the tires are cold. So if your max pressure is 65 then that is what you would need to inflate to when cold. The increased pressure when hot is normal.
If you don't inflate to max pressure the tires will not get their full capacity and heat will build up which will cause premature failure.