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Sierra Marine 4-Stroke Outboard Engine Oil, SAE 10W-30, 1 Quart

Sierra Marine 18-9420-2 4-Stroke Outboard Engine Oil, SAE 10W-30, 1 Quart

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🛥️ Protects your engine for more hours on the water
❄️ Reliable cold starts even on chilly days
🧼 Cuts down on sludge; keeps your motor clean
⚙️ Boosts performance for a smoother ride
🧪 Helps prevent salt damage and rust

: $8.99

Part Number: 18-9420-2
Manufacturer: Sierra Marine

Quantity in Stock :25

Availability: In Stock

Qty:

Sierra Marine 18-9420-2 4-Stroke Engine Oil is a premium 10W-30 blend designed to protect outboard engines from wear, corrosion, and sludge buildup while boosting performance and fuel efficiency. Ideal for high-RPM marine use, it ensures smoother operation, cleaner combustion, and easier cold starts for longer engine life.

10W-30 premium blend for 4-stroke marine engines
- Delivers reliable performance in high-RPM operation
Helps protect your boat engine from wear and corrosion
- Extends engine life with strong anti-wear additives
- Shields internal components from moisture and salt damage
Reduces friction and sludge for smoother performance
- Enhances fuel efficiency and throttle response
- Minimizes deposit buildup for cleaner combustion
Improves cold starts with excellent low-temperature viscosity
- Flows quickly in cold conditions for faster lubrication
- Reduces startup wear and strain on engine parts
Meets or exceeds NMMA FC-W and API-SJ standards
Works with most engines, including Mercury, Yamaha, Suzuki, Honda, and more
Keeps engines cleaner for better long-term efficiency
Made with highly refined base oils and additives
- Delivers a balanced blend of lubrication and protection
Ideal for outboard motors and other marine applications
- Safe for use in both freshwater and saltwater environments
- Perfect for fishing boats, pontoons, and more
Size: 1 quart
Weight: 2 lbs.
Safety Data Sheet

WARNING: This product can expose you to one or more chemicals known to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

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