For heavy-duty engines, our 15W-40 engine oil range delivers exceptional durability, soot control, and wear protection. Engineered for diesel trucks, commercial fleets, and industrial machinery, these high-performance 15W-40 oils provide extended drain intervals and maximum efficiency in demanding conditions.
Our API CI-4/CK-4, ACEA E7/E9-certified 15W-40 motor oils are specially formulated to handle high-load operations, extreme temperatures, and long-distance hauls. Whether you need engine oil for mining, construction, or transport fleets, our heavy-duty lubricants offer proven protection against deposits, corrosion, and viscosity loss.
Key Benefits:
Superior wear protection – Reduces metal-to-metal contact for longer engine life
Extended drain intervals – Lower maintenance costs with longer oil life
High thermal stability – Prevents viscosity breakdown under extreme heat
Heavy-duty detergents – Keeps diesel engines clean and sludge-free
Optimized for fleet operations – Ensures peak efficiency for trucks and machinery
Why Choose Our 15W-40 Oils?
🔹 Meets or exceeds API CI-4/CK-4, ACEA E7/E9, and OEM standards
🔹 Formulated for heavy-duty diesel trucks, agricultural, and industrial equipment
🔹 Designed for long-haul trucking, mining, and construction applications
Need assistance? Contact the Hi-Tec Oils team for expert support and guidance. Whether you have product-related questions or need help finding a dealer, we’re here to assist. Reach out to us today for personalized assistance.
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