Petro-Canada’s Duron Geo LD SAE 15W-40 and SAE 10W-30 grade lubricants are API CK-4 licensed and approved for the latest Cummins natural gas engine oil specification CES 20092 and are fully back-serviceable to Cummins CES 20085. The robust lubricant line is formulated to extend oil drain intervals up to 1,000 hours safely without risking increased engine wear or reduced performance. It also is designed to provide added all-weather performance and advanced engine protection and is approved by Cummins, Detroit Diesel Mack and Volvo for mixed fleets, including natural gas engines.
