FastEagle wrote:
Recommended tire pressures must be set by the vehicle manufacturer. Positive direction to set those recommended tire pressures found on your trailer’s federal certification label/tire placard for vehicles 10000# and above are described in paragraph S5.3.1 in the reference provided below.
tire press ref
FastEagle
Yep. more pressure recommendation numbers only. Everyone knows the tire placard is fed mandated to be on the vehicle per 571 FMVSS. And we also know the information on the placard is a recommendation only.
We also know many vehicles out here don't have a tire placard.
We also know a forum(s) with dozens/hundreds of experienced trailer owners who have hundreds of thousands of miles towing a trailer is the best source for finding what worked the best vs a tire or vehicle manufacturers "recommendations" and especially the tire placard recommendations.