Description
Castrol Duratec L is a monograde gas engine lubricant that provides excellent thermal and oxidative stability to reduce combustion chamber deposits and significantly reduce maintenance costs.
Approval Status
Castrol Duratec L is approved by:
- Deutz
- Jenbacher – engine types 2, 3 & 6 – Fuel Gas Classes A, B & C ( TI 1106-1109)
- Jenbacher – engine type 4 – Fuel Gas Classes A & B ( TI 1106-1109)
- Rolls-Royce Ulstein (applications with separate lubrication for turbochargers)
- Wärtsilä 175SG, 220SG, 25SG, 28SG and 34SG
- Wärtsilä 32DF and 50DF dual fuel engines running predominantly on natural gas
Castrol Duratec L meets the requirements of / is suitable for use in:
- Perkins
- Ruston
- Caterpillar
- Waukesha (normal coolant temperature installations)
Technical Data
| Name | Method | Units | Duratec L |
| SAE Viscosity | 40 | ||
| Base Oil Type | Mineral | ||
| Detergent Type | Calcium | ||
| Zinc Content | ASTM D4927 | ppm | 320 |
| Phosphorus Content | ASTM D4927 | ppm | 280 |
| Relative Density at 15°C | ASTM D4052 | g/ml | 0.89 |
| Kinematic Viscosity at 40°C | ASTM D445 | mm²/s | 125 |
| Kinematic Viscosity at 100°C | ASTM D445 | mm²/s | 13.0 |
| Viscosity Index | ASTM D2270 | 97 | |
| Total Base Number | ASTM D2896 | mg KOH/g | 4.5 |
| Open Flash Point | ASTM D92 | °C | 250 |
| Pour Point | ASTM D5985 | °C | -18 |
| Sulphated Ash | ASTM D874 | % wt | 0.45 |
The above figures are typical of those normal production tolerance and do not constitute a specification.