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-fuelled, medium-speed diesel applications found in marine and stationary power industries.

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