Engine oil technical data · Castrol
Castrol Power1 4T 10W-30
Castrol Power1 4T 10W-30 is a 10W-30 engine oil (API SL · JASO MA2). According to the manufacturer's data sheet it has a viscosity of 68 mm²/s at 40 °C, 10.5 mm²/s at 100 °C, a viscosity index of 150 and a TBN of 9.8 mg KOH/g.
Data sheet ↗ Data verified: 10 Nov 2026
Parameters from the data sheet
| Parameter | Value | Class median 10W-30 i |
|---|---|---|
| Viscosity 40 °C | 68 mm²/s | 74.6 mm²/s |
| Viscosity 100 °C | 10.5 mm²/s | 11.375 mm²/s |
| Viscosity index | 150 | 149 |
| TBN | 9.8 mg KOH/g | 7.8 mg KOH/g |
| CCS −25 °C | 5000 mPa·s | 5330 mPa·s |
| Pour point | not stated | |
| Flash point | not stated | |
| Density | 0.864 g/cm³ | 0.855 g/cm³ |
| HTHS 150 °C | not stated | |
| Sulphated ash | not stated |
All 10W-30 oils → See the class table for a detailed comparison with other oils.
Specifications and approvals
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