Description

Sierra’s 25W-40 Synthetic Blend Catalyst Engine Oil meets requirements of modern 4-stroke recreational engines with or without emission catalyst systems. It minimizes corrosion that is formed inside the engine, and displays enhanced detergent properties to suspend and prevent engine sludge formation. Provides industry leading wear protection and deposit control. Prevents excessive thinning under extreme performance operations. Prevents phosphorous depletion and extends the emission catalyst life. NMMA FC-W Certified/API-SL.
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
Prevents excessive thinning under extreme performance operations
Prevents phosphorous depletion and extends the emission catalyst life