The Energy that Keeps Namibia Moving


Sasol Locomotive Oil Gen 4 20W-40 is a heavy-duty, zinc-free, high-dispersancy diesel engine oil approved by General Electric and General Motors for use in their locomotives.


Sasol Locomotive Oil Gen 4 20W-40 is also recommended for the lubrication of:

  • Other diesel engines where silver-plated bearings are used
  • Other highly-rated diesel engines for which this type of oil is recommended

Features and Benefits

Extended drain periods are possible under strict oil monitoring control and fuel consumption savings of 1,5% to 3,0% (depending on operating conditions) have been achieved by the use of multigrade oil in comparison with monograde oils.

Product Specifications

  • API CD
  • General Electric GEK-61435C
  • General Motors 1761-F
  • LMOA GEN 4

Typical Characteristics

Viscosity     D445 71
@ 100°C mm²/s 13    
@ 40°C mm²/s 140    
Apparent Viscosity mPa.s @-10°C 4200 D5293  
Pour Point °C -6 D97 15
Flashpoint (COC) °C 240 D92 36
Density @ 20°C kg/m3 891 D4052 365
Sulphated Ash % m/m 1,5 D874 163
Total Base Number mg KOH/g 13 D2896 276

Storage and Handling

  • Use PVC, nitrile or other oil resistant gloves and protective clothing to prevent skin contact Where eye contact is a potential hazard, goggles should be worn.
  • Avoid temperatures above 80°C and strong oxidizing agents.
  • Ambient temperatures and atmospheric pressures normally encountered within buildings or roofed-over outdoor storage areas are acceptabl
  • Avoid entering areas where mists or vapours have built up as a result of abnormal temperatures or pressures without the proper breathing equipment and protective clothing.

Pack Information

Product CodePack Size
  210 L
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