BOXER 4 15W-50

1 x 20 L Bag in Box 74421

Boxer 4 15W-50 is a fully synthetic 4-stroke engine oil specifically developed for air-cooled Boxer engines.

  • Ensures unsurpassed wet clutch engagement
  • Guarantees extremely stable lubricant film
  • Reduces internal friction
  • Low fuel consumption and minimal wear
  • Consistent oil pressure under all riding conditions The special composition ensures minimal oil consumption in air-cooled Boxer engines.


Putoline Oil is a Dutch manufacturer and supplier of high quality oils and lubricants for motorcycles, scooters and quads only. This is what makes us unique. Almost 50 years of experience and continual research allows Putoline to provide cutting edge products at the best price/quality ratio. Manufacturing our own products guarantuees consistent high quality. Putoline Oil, Driven by Technology!

Please refer to the advisory database for use of the correct product.

Product specifications


Typical standard analyses

Density at 15 °C, kg/l 0,855
Viscosity -20 °C, mPa.s 2450
Viscosity 40 °C, mm²/s 114,00
Viscosity 100 °C, mm²/s 17,50
Viscosity Index 160
Flash Point COC, °C 238
Pour Point, °C -33
Total Base Number, mgKOH/g 7,6
Noack, % 6,8