Quicksilver 25W-40 4-Stroke Marine Engine Oil is formulated to protect marine engines operating under heavy loads and demanding environmental conditions. Engineered specifically for 4-stroke marine applications, it provides protection against wear, corrosion, sludge formation, and viscosity breakdown to help maintain reliable engine performance throughout the boating season.
Features
- FC-W certified formula meets marine industry standards for 4-stroke engine lubrication.
- Provides wear protection for critical engine components operating under heavy loads.
- Helps resist corrosion caused by moisture and marine environments.
- Formulated to maintain viscosity and lubrication performance during extended operation at elevated temperatures.
- Helps reduce sludge and deposit formation for cleaner engine operation.
- Suitable for many 4-stroke outboard, sterndrive, and inboard marine engines requiring 25W-40 oil.
- Provides dependable lubrication during startup and sustained operation.
Specifications
- brand: Quicksilver
- product type: 4-stroke marine engine oil
- viscosity grade: 25W-40
- certification: FC-W
- engine type: 4-stroke marine engines
- application: outboard, sterndrive, and inboard engines
- environment: freshwater and saltwater use
Application
- Use according to the engine manufacturer’s recommended viscosity grade and service interval.
- Check oil level before operation and maintain oil within the recommended range.
- Replace oil and filter at manufacturer-specified maintenance intervals.
Designed for marine-specific protection, Quicksilver 25W-40 4-Stroke Marine Engine Oil helps maintain engine durability, performance, and reliability in recreational and workboat applications.










