Shawn Whitacre, Chevron Lubricants' principal engineer, talks with HDT about synthetic heavy-duty engine oils and what a new oil category will mean for North American fleets.
Matheson Trucking, Subsidiaries Going Out of Business
California-based Matheson Trucking, a major USPS contractor known for its adoption of CNG-powered tractors, will be closing their doors, after filing for bankruptcy protection in 2022.