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KunLun TianWei CI-4 15W40 Diesel Engine Oil

KunLun TianWei CI-4 15W40 Diesel Engine Oil: Power Your Engine, Protect Your Investment

In the world of heavy-duty machinery, trucks, and industrial equipment, engine performance and longevity are non-negotiable. That’s where KunLun TianWei CI-4 15W40 Diesel Engine Oil steps in—a premium lubricant engineered to meet the rigorous demands of modern diesel engines. Whether you’re navigating long-haul routes, operating construction equipment, or powering agricultural machinery, this oil delivers unmatched protection, efficiency, and reliability.  

Why Choose KunLun TianWei CI-4 15W40?

1. Advanced Protection for Extreme Conditions

   Formulated with cutting-edge additive technology, KunLun TianWei CI-4 15W40 excels in high-temperature environments. Its robust viscosity stability ensures a durable oil film even under heavy loads, reducing wear on critical engine components like pistons, turbochargers, and bearings.  

2. Superior Soot Control 

   Designed for engines operating under severe conditions, this oil meets the stringent API CI-4 specification. It effectively neutralizes soot buildup—a common challenge in diesel engines—to maintain peak performance and extend oil change intervals.  

3. Enhanced Fuel Efficiency  

   The optimized friction-reduction formula minimizes energy loss, helping operators save on fuel costs while reducing carbon emissions.  

4. All-Season Performance  

   With a 15W40 viscosity grade, KunLun TianWei performs flawlessly in both scorching summers and freezing winters, ensuring quick cold starts and consistent lubrication year-round.  

5. Engine Cleanliness  

   High-performance detergents and dispersants prevent sludge and deposit formation, keeping engines cleaner for longer and reducing maintenance downtime.  

Trusted by Professionals, Built for Durability

KunLun TianWei is a flagship brand of China National Petroleum Corporation (CNPC), a global energy giant with decades of expertise in lubricant innovation. Rigorously tested in real-world scenarios—from mining sites to cross-continental logistics—this oil is trusted by fleet managers and diesel engine manufacturers alike.  

Ideal for:  

  •  Heavy-duty trucks and buses  

  •  Construction and agricultural      machinery  

  •  Turbocharged and EGR-equipped      engines  

  •  Engines requiring API CI-4, CH-4, or ACEA      E7/E5 compliance  

Join the KunLun TianWei Revolution 

Don’t compromise on engine health. KunLun TianWei CI-4 15W40 Diesel Engine Oil combines cutting-edge technology with affordability, offering a cost-effective solution without sacrificing quality.  

Ready to Experience the Difference?  

Contact our technical team for tailored recommendations.  

Sales：+86-021-61152505
E-mail：info@lassh.com

Power Up. Protect More. Drive Further.  

Choose KunLun TianWei—where innovation meets reliability. 
KunLun TianWei: Engineered for Excellence. Backed by CNPC. 

 
Note: Always consult your engine manufacturer’s guidelines before selecting lubricants.