MAG 1 Premium Conventional 15W-40 CK-4 Heavy Duty Diesel Engine Motor Oil 1-GallonMAG 1 Premium Conventional 15W-40 CK-4 is technologically advanced heavy-duty diesel engine oil that provides outstanding performance, including being recommended for use in most heavy-duty ...MAG 1 Premium Conventional 15W-40 CK-4 Heavy Duty Diesel Engine Motor Oil 1-GallonMAG 1 Premium Conventional 15W-40 CK-4 is technologically advanced heavy-duty diesel engine oil that provides outstanding performance, including being recommended for use in most heavy-duty applications and operating environments found on and off the highway. This oil also meets or exceeds all requirements of OEMs. MAG 1 with FMX Technology provides unsurpassed protection in every viscosity.
FMX Technology creates a strong, durable, and high-performing level of protection that controls friction and reduces metal-to-metal contact.