Mobil Delvac MX 15W-40 is an extra high performance diesel engine oil that provides excellent lubrication of today's diesel engines promoting extended engine life. As a result, this product meets or exceeds the specifications of virtually all major European and American engine manufacturers. This extra high performance has been proven in the field in a wide variety of industries, applications, and mixed fleets. High performance base stocks with a progressive additive system provide superior control of oil thickening due to soot build-up and high temperatures, as well as outstanding resistance to oxidation, corrosion, and high temperature deposits.

SAE 15W-40 Premium Motor Oil

SAE 15W-40 motor oil is engineered to provide robust protection in a wide range of operating conditions, making it ideal for high-mileage vehicles and heavy-duty engines. Its enhanced viscosity ensures optimal performance and protection against wear and sludge formation.

• Grade: SAE 15W-40
• Ash, Sulfated: 1.3% mass (ASTM D874)
• Density @ 15.6 C: 0.885 g/ml (ASTM D4052)
• Flash Point: 228°C (ASTM D92)
• Kinematic Viscosity @ 100 C: 14.4 mm²/s (ASTM D445)
• Kinematic Viscosity @ 40 C: 106 mm²/s (ASTM D445)
• Pour Point: -33°C (ASTM D97)
• Total Base Number: 12 mgKOH/g (ASTM D2896)
• Viscosity Index: 140 (ASTM D2270)