55-Gallon T600 Synthetic 15W40 CJ-4 Truck Motor Oil for Heavy Duty Diesel Engines. This oil has been tested in semi's up to 30,000 miles and still meets specifications. Formulated to meet the new engine specs introduced in 2007 and still work well in older engines. Meets or exceeds Mack, Cummins, Caterpillar, DDC, Volvo, Navistar, and JASO manufacturers specs for large diesel engines. Great for diesel and gas pickups, SUV's, and heavy duty lawn equipment. The additive package used by Lucas is what makes the difference. Meets or exceeds API CJ-4, CI-4+, CI-4, CF/SM, ACEA E7.

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.

Product Description / MSDS / Prices http://buysinopec.com/collections/engine-oil/products/15w40-diesel-oil-55-gallon-drum?variant=537513589

SAE 15W-40
This 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.

15/40 Synthetic Oil
This oil is a synthetic oil, meaning crude oil is not used in making it. Synthetic oil can be used in vehicle engines instead of motor oils refined from crude oil, and often provides superior mechanical performance over traditional motor oil, including increased gas mileage and reduced engine wear at extreme temperatures. Its complex method of production means it can often cost more than conventional motor oil.