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heavy-duty

Halvard T20501 20W-50 Engine oil

PN: 20501 20W-50

A high-performance mineral SAE 20W-50 engine oil developed for heavy-duty diesel applications requiring robust engine protection, strong detergency and broad legacy OEM coverage. It is suitable for mixed fleets and is positioned as the primary 20W-50 product for trucks, off-road equipment and other demanding diesel applications.

Download TDS Sheet

Recommended for modern and older heavy-duty diesel engines used in trucks, construction equipment, agricultural machinery and off-road applications. It is suitable for mixed fleets and for low-emission diesel engines covering Euro II, Euro III and some Euro IV applications, including engines equipped with EGR where the listed specifications are required.

  • Engine cleanliness and durability: helps control deposits and supports long engine life in demanding operating conditions
  • Broad mixed-fleet suitability: suitable for heavy-duty trucks, off-road machinery and general fleet applications
  • Cold-flow performance: provides fluidity at lower temperatures for a 20W-50 viscosity grade
  • Strong OEM coverage: meets a wide range of U.S. and European heavy-duty diesel engine manufacturer requirements

Typical Properties

 

Property Test method Unit Typical value
Density at 15°C ASTM D4052 g/ml 0.892
Kinematic viscosity at 40°C ASTM D445 mm²/s 177
Kinematic viscosity at 100°C ASTM D445 mm²/s 18.0
Viscosity index ASTM D2270 – 112
Base number, HCLO4 method ASTM D2896 mg KOH/g 11.4
Pour point ASTM D6892 °C -30
Sulfated ash ASTM D874 Mass % 1.34
Flash Point COC ASTM D92 °C 232

The above values are typical characteristics and do not constitute a sales specification. Product information may be updated as technology and manufacturing specifications evolve.

User Advice

Always Verify Vehicle Compatibility before use

Storage

Storage, Handling & Environmental Advice

  • Storage: Store upright in a cool, dry place below 60°C. Avoid direct sunlight and freezing conditions.
  • Handling: Avoid contamination with other fluids. Always reseal containers after use.
  • Environmental Precautions: Dispose of used oil and packaging in accordance with local environmental regulations.

Health & Safety

NORDIC Oil presents no significant risk to health or the environment when used properly. Refer to the Safety Data Sheet (SDS) for full safety, handling, and environmental information.

Refer to the latest Safety Data Sheet before use.

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