15W-40 CI-4/SL
B5 15W40 CI-4/SL is a heavy-duty multigrade diesel engine oil designed for both diesel and gasoline engines. Formulated with high-quality mineral base oils and advanced additives for extended engine life. Meets API CI-4 and SL specifications, ensuring reliable performance in mixed fleet applications. Offers excellent protection against wear, oxidation, soot buildup, and thermal breakdown. Ideal for high-temperature operations and older engines requiring a thicker viscosity grade.