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.
This product has multiple variants. The options may be chosen on the product page
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This product has multiple variants. The options may be chosen on the product page
Add to Compare
This product has multiple variants. The options may be chosen on the product page
Add to Compare
This product has multiple variants. The options may be chosen on the product page
Add to Compare
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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