Use DELO 100 to help extend the life of older marine engines.Recommended for use in older 2- and 4-stroke marine diesel engines, Chevron Delo 100 motor oils utilize the latest technology to provide excellent performance in older engines using either normal, high or low sulfur fuels. The SAE 30 and 40 grades are specifically designed for 2-stroke diesel engines requiring highly effective control of wear and deposits. Delo 100 oils comply with Detroit Diesel Corporation 2-stroke engine requirements, including the 0.85 ash maximum for Series 149 engines. API Service Categories CF-2, CD II (SAE 30, 40).Key FeaturesProvides excellent performance in older engines using either normal, high, or low sulfur fuelsComplies with Detroit Diesel Corporation 2-stroke engine requirements; SAE 30 and 40 gradesProvides exceptional protection, even under severe conditions