API CI-4 15W-40 is a premium fully synthetic heavy-duty diesel engine oil formulated for high-speed, four-stroke diesel engines, including those equipped with Exhaust Gas Recirculation (EGR) systems. It is designed to meet the demands of engines operating under severe service conditions while complying with 2004 emission standards.
Common Uses and Application
Heavy Duty Diesel Vehicles: Suitable for trucks, buses, and commercial transport fleets.
Construction and Industrial Equipment: Recommended for loaders, excavators, generators, and heavy machinery.
Agricultural Machinery: Ideal for tractors, harvesters, and diesel-powered farm equipment.
Mixed Fleet Applications: Compatible with diesel engines and selected gasoline engines requiring API Sl or earlier specifications.
PRODUCT PERFORMANCE
API CI-4 15W-40 delivers dependable engine protection, helps reduce friction, controls soot deposits, and maintains engine cleanliness under demanding operating conditions. Its fully synthetic formula supports smoother engine performance, reliable lubrication, and longer engine service life.
