Kenworth Truck Company is the manufacturer of The World’s Best® heavy and medium duty trucks. Kenworth is an industry leader in providing fuel-saving technology solutions that help increase fuel efficiency and reduce emissions. The company’s dedication to the green fleet includes aerodynamic trucks, medium duty diesel-electric hybrids and liquefied natural gas trucks. Kenworth’s Internet home page is at www.kenworth.com. Kenworth. A PACCAR Company. PACCAR is a global technology leader in the design, manufacture and customer support of premium light-, medium- and heavy-duty trucks. The company designs and manufactures advanced diesel engines and also provides customized financial services, information technology and truck parts related to its principal business. The official Kenworth Truck Company social media sites are designed as a forum for information from Kenworth and thoughts from Kenworth owners and Kenworth enthusiasts. Kenworth sites are for every Kenworth fan. Please offer everyone the same courtesy you want received, and understand there may be differing views posted on this site. Also, unauthorized advertising and promotion of products and services are prohibited on this site and violators will be removed. Finally, from a legal as well as a knowledge-based standpoint, this site is not staffed to provide operating instructions, troubleshooting information or service advice for Kenworth trucks due to the uniqueness of each truck and operating environment. Please refer these questions to a Kenworth dealer where they have the equipment and trained professionals to help. To find your nearest Kenworth dealer, use the Kenworth Dealer Locator at https://www.kenworth.com/dealers/.