Castrol Duratec L is a mineral-based SAE 40 low ash gas engine lubricant.

Castrol Duratec L is formulated primarily for spark ignition natural gas engines where a low ash formulation is specified and where the gas is largely free from aggressive components i.e. halogens and hydrogen sulphide.

The detergent/dispersant additive system has been designed to control deposit formation and improve oxidation characteristics whilst protecting the engine against corrosion and offering good TBN retention.

Duratec L is approved by:

• Deutz
• Jenbacher – engine types 2, 3 & 6 – Fuel Gas Classes A, B & C ( TI 1106-1109)
• Jenbacher – engine type 4 – Fuel Gas Classes A & B ( TI 1106-1109)
• Rolls Royce Ulstein (applications with separate lubrication for turbochargers)
• Wärtsilä 175SG, 220SG, 25SG, 28SG and 34SG
• Wärtsilä 32DF and 50DF dual fuel engines running predominantly on natural gas

Duratec L meets the requirements of / suitable for use in:

• Perkins
• Ruston
• Caterpillar
• Waukesha (normal coolant temperature installations)

Castrol Duratec L Lubricant Advantages:

• Reduces deposits & maintains engine cleanliness shown by multiple OEM engine trials and extensive field experience
• Possesses good thermal and oxidative stability 1
• Provides good resistance to acid corrosion.1
• Excellent antiwear characteristics 1 as demonstrated during multiple OEM approval trials and field installations

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Product Data Sheet 

Safety Data Sheet