Phil Mosier, contributorPhil Mosier is the Manager of Commercial Tire Development at Cooper Tire & Rubber Company.MaintenanceA top-tier tire maintenance program is a balancing actTypically, for a steer tire, when a tire isn’t balanced you’ll see cupping or scalloping (wavy wear) on the shoulder ribs. Over time that can progress to the intermediate ribs.March 11, 2022Page 1 of 1Top StoriesMaintenanceEPA asks truck OEMs to end 5 mph engine derate for aftertreatment woesThe EPA's new guidance on tiered DEF derates aims to improve highway safety, but could it lead to more costly aftertreatment system damage?RegulationsOEMs file lawsuit over 'backdoor' enforcement of banned CARB regsBusinessRail giant goes after West Coast to Midwest truck freightBusinessWeigh station bypass: does it make sense for you?Featured SponsorCargo theft is on the rise. Learn strategies to protect your trucks, trailers and freight.