Ram Trucks 2015 Chassis Cab Commercial - Owner Manual - Manual (Page 570)

Ⅵ DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES . . . . . . . .575
▫ Treadwear. . . . . . . . . . . . . . . . . . . . . . . . . . .575
▫ Traction Grades . . . . . . . . . . . . . . . . . . . . . . .575
▫ Temperature Grades. . . . . . . . . . . . . . . . . . . .576
568 IF YOU NEED CONSUMER ASSISTANCE