Liqui-Moly Top Tec Truck 4050 10W-40 is a synthetic-technology, low-friction motor oil developed specifically for modern heavy-duty diesel engines operating under the latest emissions regulations. Formulated with advanced additive technology, it delivers exceptional engine protection, cleanliness, and long service life, even under severe operating conditions. This oil maintains stable oil pressure and a strong lubricating film at high loads and temperatures, while significantly reducing wear and oil consumption. Its outstanding detergent and dispersant properties help keep critical engine components clean and prevent harmful deposits, including bore polishing. Top Tec Truck 4050 10W-40 supports extended oil change intervals, is backwards compatible, and is fully designed to protect and extend the service life of diesel particulate filters (DPF). It exceeds the stringent test requirements of leading commercial vehicle manufacturers, making it ideal for modern fleets and mixed vehicle operations.

• Synthetic-technology low-friction diesel engine oil
• Designed for modern emissions-compliant diesel engines
• Outstanding wear protection and oil film strength
• Prevents bore polishing
• Excellent detergent and dispersant properties
• Keeps engine and charge-air cooler extremely clean
• High shear stability and resistance to aging
• Excellent cold-start performance
• Broad operating temperature range
• Reduces oil consumption
• Supports extended oil change intervals
• Maximises diesel particulate filter (DPF) service life
• Backwards compatible with earlier diesel engine requirements