It really depends on your total weight and which tires you have. We had our 2020 Bounder 35K weighed at the rally last year and the recommendation was 85 psi in the front and 100 psi in the rear. We tow a Jeep Trailhawk. Perhaps a trip to a Certified Scales once you are fully loaded will give you a true weight.  The attached is the Michelin RV Guide which gives you the proper PSI depending on weight and size of tires. Hope this helps.