Engine oil technical data · Mobil
Mobil Delvac XHP Extra 10W-40
Mobil Delvac XHP Extra 10W-40 is a 10W-40 engine oil (API CI-4, CH-4). According to the manufacturer's data sheet it has a viscosity of 98 mm²/s at 40 °C, 14.6 mm²/s at 100 °C, a viscosity index of 154, a TBN of 15.3 mg KOH/g, a pour point of −42 °C and sulphated ash of 1.6 %.
Data sheet ↗ Data verified: 10 Nov 2026
Parameters from the data sheet
| Parameter | Value | Class median 10W-40 i |
|---|---|---|
| Viscosity 40 °C | 98 mm²/s | 96.1 mm²/s |
| Viscosity 100 °C | 14.6 mm²/s | 14.5 mm²/s |
| Viscosity index | 154 | 154 |
| TBN | 15.3 mg KOH/g | 10.5 mg KOH/g |
| CCS −25 °C | not stated | |
| Pour point | −42 °C | −39 °C |
| Flash point | 244 °C | 230 °C |
| Density | 0.868 g/cm³ | 0.865 g/cm³ |
| HTHS 150 °C | not stated | |
| Sulphated ash | 1.6 % | 1 % |
All 10W-40 oils → See the class table for a detailed comparison with other oils.
Specifications and approvals
- Specification
- API CI-4, CH-4
- Oils by specification
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