This has probably been asked before but because we are leaving in the AM for the summer I need quick advise from the folks on here. We have a 2013 Ford F350 SRW 6.7L Diesel and a new to us 2016 Key...
65 psi was for a D rated tire. The new tires are E rated and 80 PSI. Run the new tires At 80 cold. As temperatures warm, you may need to adjust the cold PSI.