Description
Sierra Marine Engine Oil - Premium Blend 4-Stroke Catalyst; 5 Quart Jug - SIE189400CAT4 is a high-performance, 25W-40 viscosity conventional/synthetic blend marine motor oil explicitly engineered for modern 4-stroke engines. It is specifically formulated to protect demanding marine emission systems while standing up to high-stress, high-RPM aquatic environments.
Key Technical Specifications
- Viscosity Grade: SAE 25W-40.
- Container Size: 5 Quart Jug (160 Fluid Ounces).
- Certifications: NMMA FC-W and FC-W Catalyst Certified.
- OEM Equivalent: Designed to replace Mercury Marine oil part number 92-8M0078627.
Core Benefits & Technology
- Catalyst System Protection: Capitalizes on "ZDDP" anti-wear additive technology to prevent phosphorus depletion, directly extending the operational life of your boat's emission catalyst components.
- Versatile Application: Formulated for use in modern recreational 4-stroke inboard, outboard, and sterndrive (I/O) engines, operating seamlessly whether they possess a catalyst exhaust system or not.
- Marine-Grade Defenses: Engineered to outperform automotive oils by fighting off rust, high-RPM thermal breakdown, and moisture contamination common to watercraft. It provides superior detergency to clean pistons and keep rings from sticking.
Specifications
- California Residents:
- PROP 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
