20W-50 CI-4
B5 20W50 CI-4 is a heavy-duty diesel engine oil formulated for high-performance commercial engines. Engineered with advanced additives to provide excellent protection against wear, deposits, and oxidation. Meets API CI-4 specifications, making it suitable for modern EGR-equipped and turbocharged diesel engines. Ensures longer drain intervals and maintains engine cleanliness under severe conditions. Recommended for trucks, buses, construction equipment, and other heavy-duty diesel applications.