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

Protect your Yamaha outboard with a full synthetic marine oil built for real on-the-water conditions. Yamaha 10W30 Marine Full Synthetic Oil helps maintain stable lubrication under heat and load, supports cleaner operation, and adds corrosion protection for humid and saltwater environments. It is an ideal choice for routine maintenance when you want smooth performance and dependable protection from start-up to shut-down.

Key Features

• Viscosity: 10W-30
• Type: Marine full synthetic outboard engine oil
• Formulated to help protect against wear during high RPM operation
• Helps resist thermal breakdown in hot running conditions
• Marine-focused corrosion protection for storage and downtime
• Supports cleaner internals by helping reduce sludge and deposits
• Bottle Size: 1 quart
• OEM Part Number: QBL-10W30-FS-12
• Yamalube 10W-30 full synthetic is recommended for use on all outboard engines running 10W-30 engine oil

Performance Benefits

Outboards work hard—steady throttle, frequent RPM changes, and constant moisture exposure. This full synthetic marine formula helps keep viscosity consistent under load and provides strong film strength to protect internal components. The result is smoother operation and added peace of mind when you are running long days or storing the engine between trips.