Rear tire pressures on 3500 dually

[RV_Goose]

The door sticker says to run 65 PSI on the rear tires on my 2020 RAM 3500 Dually. Some RV hauler tell methat is too low and I need to be running 80 in all 4 tires. Everything I have read says that the 3500 dually runs less pressure in the dual tire configuration than what a single rear tire would run. I;m following the owners manual for now.

What say y'all?

 

[Deleted member 80]

65 when loaded heavy, but within the axle rating, and as low as 35 empty.