Yamaha - 10W30 Marine Full Synthetic Oil - 55 Gallon - QBL-10W30-FS-55

Protect your Yamaha outboard with a full synthetic marine oil built for real-world, on-the-water performance. Yamaha 10W30 Marine Full Synthetic Oil is engineered to maintain consistent lubrication under heat and load, support cleaner engine operation, and deliver enhanced corrosion protection in humid and saltwater environments. Supplied in a 55-gallon drum, it’s an ideal solution for high-volume service operations, marinas, and shops that need reliable oil on hand for routine maintenance and bulk use.

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 elevated operating temperatures
  
• Marine-grade corrosion protection for storage and harsh conditions
  
• Supports cleaner internals by helping reduce sludge and deposits
  
• Container Size: 55 gallon drum
  
• OEM Part Number: QBL-10W30-FS-55
• Yamalube 10W-30 full synthetic is recommended for use on all outboard engines running 10W-30 engine oil

Performance Benefits

Outboards operate under demanding conditions—steady throttle, frequent RPM changes, and constant exposure to moisture. This full synthetic marine formula helps maintain stable viscosity under load while delivering strong film strength to protect internal engine components. In a bulk 55-gallon format, it also supports efficient service workflows, ensuring you always have the right oil ready for large-scale maintenance needs. The result is smoother performance, improved reliability, and added confidence whether servicing a fleet or preparing engines for extended use.