Castrol Duratec HPL is a new generation high performance spark ignition gas engine lubricant, incorporating a balance of
the latest additive technology.

Castrol Duratec HPL has been developed for use in highly rated natural gas engines operating at high loads and high
temperatures. The blend of specially selected high quality base oils with the latest additive technology provides a lubricant
primarily for spark ignition gas engines where a low ash formulation is required.
Duratec HPL is approved by:
MAN Nutzfahrzeuge AG – running on natural gas, sewer gas, landfill gas and biogas
Menag Energie GmbH – running on natural gas and biogas
MTU Onsite Energy GmbH – 400 Series running on natural gas and propane

• Superior thermal and oxidative resistance
• Extends oil change periods compared to standard products
• Maintains film thickness at high temperatures
• Reduced total lubrication costs