Postmech
Newbie
Door placards recommend pressures at rated Gross Vehicle Weight (GVWR) for tires that originally came on vehicle. Different types and sizes of tires require different pressures. If your like me, 90 % of the time, I am running with an empty bed. So no need to max out pressure most of the time. Doing the water or chalk test will get you in the ballpark, then adjust for even wear. You can also use a laser thermo to compare temps on center and side of tread. Hotter in middle means to much pressure , and vice versa colder in middle means to add pressure. Sorry, about length of post , my wife wont let me talk much.lol