Yamalube Marine 10W-40 Semi-Synthetic Motor Oil (S4-M) 1 Liter

YAMALUBE S4-M 10W-40 semi-synthetic marine oil is a high-quality, high-performance oil specially developed to meet the unique requirements of Yamaha four-stroke outboard engines and jet boats. Its advanced formula provides reliable protection against wear, corrosion, and engine stress—even under demanding marine operating conditions.

Thanks to its semi-synthetic formulation, the oil provides stable lubrication, reduces engine deposits, and helps maintain consistently high performance and improved fuel efficiency. It exceeds the requirements of the API-SJ specification and makes a major contribution to a long engine service life.

Benefits & Features

• Semi-synthetic high-performance marine oil for Yamaha four-stroke engines

• Exceeds the API-SJ standard for optimal wear protection

• Unique corrosion inhibitor protects engine components at idle and during operation

• Excellent anti-foaming and anti-corrosion properties

• Long-lasting protection against engine stress

• Improved cleaning and dispersing properties for cleaner engines

• Helps maintain consistent performance and fuel efficiency

Applications

• Yamaha four-stroke outboard engines

• Yamaha jet boats
  (Please refer to the manufacturer's specifications and owner's manual)

1-liter container