Servo 15w40 Premium Diesel Engine Oil Kinematic Viscosity @ 100 Degree Celsius Ash %: 10%

Servo 15W40 Premium Diesel Engine Oil meets the latest high-mileage ASTM specification and is formulated with advanced detergent and dispersant additives. The ASTM specification includes a revised performance classification based on a single number - the kinematic viscosity index. The new classification of base oils is defined by the kinematic viscosity index (kV) at 100A C as shown below: Servo Premium 15W40 Premium Diesel Engine oil with Kinematic viscosity at 100A C is designed to meet the latest industry standards. It relies on a patented additive technology to improve resistance to thermal breakdown, reduce fuel consumption, prevent coking and polymerization, and increase anti-wear performance. It also features an advanced formula for an easy startup in cold temperatures, preventing piston scuffing without compromising wear protection or oxidation resistance. When you're looking for great engine protection in your diesel engine, look to the ASTM specification chart to find the viscosity grade and manufacturer specifications that are right for you. Your engine will thank you!