The Mag 1 15W-40 61658 Diesel Engine Oil is a high-quality product designed specifically for diesel engines. With a brand name of MAG 1, this 1 qt. oil comes in a convenient pack of 6, making it ideal for use in various industrial settings. This oil is formulated to provide excellent lubrication and protection for diesel engines, ensuring optimal performance and longevity. Perfect for businesses and industries requiring reliable engine maintenance and protection, the Mag 1 Diesel Engine Oil is a trusted choice for metalworking and manufacturing processes.