15W-40 CH-4
B5 15W40 is a heavy-duty engine oil designed for diesel engines. Formulated with high-quality mineral base oils and advanced additives for extended engine life. Meets API CH-4 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.