Yamaha 10W30 Marine Full Synthetic Oil (1 Quart) - QBL-10W30-FS-12

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Help protect your Yamaha outboard with a full synthetic marine oil designed for real-world use on the water. Yamaha 10W30 Marine Full Synthetic Oil is built to maintain consistent lubrication under heat and load, support cleaner engine operation, and provide added corrosion resistance in humid and saltwater environments. It’s a solid choice for routine maintenance when you want reliable performance and protection from cold start through shutdown.

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Key Features

• Viscosity: 10W-30
• Type: Marine full synthetic outboard engine oil
• Engineered to help reduce wear during sustained high RPM operation
• Designed to maintain stability and resist breakdown in elevated temperatures
• Provides marine-grade corrosion protection during storage and downtime
• Helps keep internal components cleaner by minimizing sludge and deposit buildup
• Bottle Size: 1 quart
• OEM Part Number: QBL-10W30-FS-12
• Yamalube 10W-30 full synthetic is recommended for use in outboard engines requiring 10W-30 engine oil

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Performance Benefits

Outboards see steady load, changing RPM, and constant exposure to moisture. This full synthetic marine formula helps maintain consistent viscosity under those conditions while delivering a durable protective film across internal engine components. The result is smoother operation and added confidence whether you're running extended hours or letting the engine sit between uses.