4 x 5 L can 33421

Atlantic 4T 25W-40 is a 4-stroke motor oil for outboard and inboard engines. Atlantic 4T 25W-40 is based on premium base oils, supplemented with special additives, which achieve the following properties:

  • Lubrication of all engine parts
  • Very powerful detergency, which ensures the engine is cleaner
  • Good cold start properties
  • Very high resistance to corrosion, oxidation and wear
  • Outstanding shear stability


Atlantic 4T 25W-40 is particularly suitable for use in high-speed, heavy-duty outboard and inboard motors. Because 4-stroke outboard motors place different requirements on motor oil, this oil is not suitable for use in cars.

Product specifications


Typical standard analyses

Density at 15 °C, kg/l 0,876
Viscosity -10 °C, mPa.s 6200
Viscosity 40 °C, mm²/s 140,00
Viscosity 100 °C, mm²/s 14,90
Viscosity Index 107
Flash Point COC, °C 242
Pour Point, °C -27
Total Base Number, mgKOH/g 7,4
Sulphate Ash, % 0,79
Molybdenum, mg/kg