25W-40 FC-W Synthetic Blend Catalyst Oil, Qt. | 18-9440CAT-2

Sierra 18-9440CAT-2 synthetic blend catalyst oil features industry leading wear protection and deposit control. It prevents excessive thinning under extreme performance operations, and minimizes corrosion that is formed inside the engine.

• Meets requirements of modern 4-stroke recreational engines with or without emission catalyst systems
• Minimizes corrosion that is formed inside the engine
• Displays enhanced detergent properties to suspend and prevent engine sludge formation
• Industry leading wear protection and deposit control
• Prevents excessive thinning under extreme performance operations
• Capitalizing on "ZDDP" anti-wear additive technology
• Prevents phosphorous depletion and extends the emission catalyst life
• NMMA FC-W Certified/API-SL