You can run at the max operating pressure of the tire, which will reduce rolling resistance. Whether you'd be able to measure it is an open question. However, running at max pressure does impose a harsher ride for the trailer, so you may experience more vibration related failures over time. Tires have a pressure vs. load curve, hence the suggestion above to weigh the trailer to determine the load.ColleenD2 said:Tire question while I have you all. I am having my Goodyear endurance put on the camper today but I'm curious about tire pressure. Do we follow the pressure on the tire? Of course on the label of the tab it says 50 but that's because they expect the Chinese tires that are on there. The endurance says 80. I want to be safe.