Castrol Duratec M is a mineral based SAE 40 monograde medium ash gas engine lubricant that provides excellent thermal and oxidative stability to reduce combustion chamber deposits and significantly reduce maintenance costs.

Duratec M is suitable for use in both spark ignition and dual-fuel gas engines. It is formulated for applications where the OEM requires a medium ash product. The detergent/dispersant additive system has been specifically designed to control deposit formation. Duratec M also has improved resistance to oxidation and nitration which ensures a longer oil service life. It also offers excellent corrosion control and base number retention.

Castrol Duratec M is approved by:
Guascor
Jenbacher – Series 2 & 3 gas engines: Natural gas applications
MWM (Deutz)
Perkins

Castrol Duratec M Lubricant Advantages:

• Higher ash content to overcome valve recession problems.
• High resistance to combustion chamber deposit formation which means cleaner running engines.
• High resistance to oxidation and nitration leads to longer oil life and extends drain intervals. This reduces maintenance
costs and downtime.
• Excellent antiwear characteristics provide a high level of protection against piston, cylinder wear and scuffing.

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Product Data Sheet 

Safety Data Sheet