Sierra 18-9551-7 10W40 FC-W 4-Cycle Outboard Synthetic Blend Oil 55 Gallon Drum

Sierra 18-9551-7 is a premium 10W-40 synthetic blend oil specifically engineered for marine 4-cycle outboard and inboard engines without catalytic converters. This advanced formulation meets NMMA FC-W and API SL specifications, ensuring superior protection and performance in demanding marine environments.

Key Features:

• NMMA FC-W and API SL certified for reliable marine engine protection
• 10W-40 viscosity grade provides excellent flow characteristics in varying temperatures
• Synthetic blend formula offers enhanced lubrication and thermal stability
• Advanced rust and corrosion inhibitors protect against saltwater and moisture damage
• Reduces engine wear and extends service life of critical components
• Compatible with all 4-cycle outboard and inboard gasoline engines without catalytic converters
• Bulk 55-gallon drum for high-volume marine service operations

This marine-grade oil delivers superior protection against the unique challenges of the marine environment, including constant exposure to moisture, temperature fluctuations, and extended operating periods. The synthetic blend technology provides better oxidation resistance and cleaner engine operation compared to conventional oils, making it ideal for commercial marine operations, marinas, and high-volume service centers.