Mobilgard M40 Series diesel engine oils

Mobilgard™ M40 Series extra-high-performance, premium 40 TBN engine oils (Mobilgard™ M340 and Mobilgard™ M440) are designed for use in the most severe, residual-fueled, medium-speed diesel applications found in marine and stationary power industries.

Formulated using the latest additive detergent technology, Mobilgard M40 Series oils provide the following benefits:

• Reduced deposits in piston undercrown and ring belt areas
• Extends the life of critical wear surfaces
• Clean camshaft and crankcase spaces
• Protects wear surfaces from water and acidic corrosion
• Reduced sludge formation, longer oil life, cleaner engines
• Reduced lubricant consumption
• Combats fuel and combustion related corrosion and deposits

Mobilgard M440 oil has outstanding thermal and oxidation stability. It has excellent TBN retention and resistance to viscosity increases over long operating periods. It also promotes a high level of engine cleanliness with protection against wear. Compared to other medium speed engine oils, it has excellent lube/fuel compatibility and separates easily from water.