Valvoline Premium Blue One Solution SAE 15W-40 Diesel Engine Oil 1 GA Product Description Valvoline Premium Blue Heavy Duty Engine Oil delivers superior protection for hardworking trucks and equipment. The proprietary One Solution Technology is designed for heavy duty diesel, gas or natural gas engines in both on road and off highway applications. The engine oil is the ?The Only One? endorsed and recommended by Cummins and features exceptional oxidation resistance, outstanding wear protection and superior deposit performance compared to industry requirements. Valvoline Premium Blue Heavy Duty Engine Oil, How the Tough Get Going. -- Motor oil is made from crude oil and is used to lubricate, clean, and cool engines. Types of motor oil include conventional, synthetic, diesel, bio-based, hybrid (blends of conventional and synthetic), and recycled oils. Motor oil varies in weight and viscosity, as well as additives that some manufacturers add to the oil during the refining process. A numerical code system created by the Society of Automotive Engineers (SAE) grades motor oils according to viscosity--the higher the number between 0 and 60, the more viscous (thicker) the oil is. Most consumer motor oils are graded by two numbers, with the first number indicating cold weather (Winter or "W") performance.SAE 15W-40This oil has a weight of SAE 15W-40, meaning it has an SAE viscosity rating of 15 in cold temperatures and a rating of 40 at normal operating temperature. Always check your vehicle's owner's manual to verify that this is the correct weight of motor oil for your vehicle.Conventional Motor OilThis oil is a conventional motor oil, meaning it is refined from crude oil or petroleum products. Conventional motor oils may or may not have additives included after refining. Conventional motor oils are more versatile than synthetic or hybrid motor oils, because they are suitable for use with nearly all types of modern vehicle engines, from cars and trucks to motorcycles, ATVs, farm equipment, and more. Features One Solution Technology Suitable For A Wide Range Of Heavy-Duty Engines Including Diesel, Gas And Natural Gas Applications ?The Only One? Endorsed And Recommended By Cummins Outstanding Oxidation Resistance Supports Long Oil Life In Heavy Duty Engines Superior Wear Protection For Hardworking Heavy-Duty Trucks And Equipment USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.