Yeah, I wrote down the wrong size, it was late at night, 275/65 r18. That is my tire size. Sounds like 40 running empty seems to be good. I will try 45 with the trailer on. That seems a lot more reasonable. Actually then it is exactly what I was running before on the P tires.
Hi, just bought new tires for my 2011 F150 max tow, had the p285/65 r80 and upgraded to the Michelin LTX M/S2 E rated tire same size. I used to run the p tires at 35 unloaded and 45 towing. When I checked the PSI after they installed the tires, they put in the same 35 as was on the door sticker. when I called Ford they said the same as the tire dealer, when I called Michelin, they said the same thing. Am I crazy, but shouldn't these tires be put at a much higher PSI. My trailer has a very heavy tongue weight. My rear axle came in weighing 3700lbs with my WDH on. What PSI should I put the tires at towing and not towing? I have read so many different forum answers, it seems no one has a good answer. When I called Ford I asked what PSI do they run on the F 150's that had the LT tires as standard equipment, and he couldn't answer me. If someone has an F150 that came standard with the LT tires, what does it say on your door sticker? I don't want to ruin these expensive new tires by running them too low.
While we prepared for Hurricane Sandy to hit, we put the generator just under the rear end of our trailer with the exhaust pointing out. Even through the hurricane it did not get wet. After the power was out, we lived in the trailer for a while through snow, cold and rain, running the generator 24/7 in non eco mode. Never had any problem with co2.