Engine oil technical data · Castrol
Castrol Magnatec 5W-40
Castrol Magnatec 5W-40 is a 5W-40 C3 engine oil (ACEA C3 · API SN/CF). According to the manufacturer's data sheet it has a viscosity of 81 mm²/s at 40 °C, 13.4 mm²/s at 100 °C, a viscosity index of 169, a pour point of −45 °C and sulphated ash of 0.8 %.
Data sheet ↗ Data verified: 4 Nov 2026
Parameters from the data sheet
| Parameter | Value | Class median 5W-40 C3 |
|---|---|---|
| Viscosity 40 °C | 81 mm²/s | 85.25 mm²/s |
| Viscosity 100 °C | 13.4 mm²/s | 14.05 mm²/s |
| Viscosity index | 169 | 171 |
| TBN | not stated | |
| CCS −30 °C | 6220 mPa·s | 6077 mPa·s |
| Pour point | −45 °C | −42 °C |
| Flash point | 207 °CMeasured in a closed cup (PMCC), so lower than the COC values in the other rows. | 225 °C |
| Density | 0.85 g/cm³ | 0.85 g/cm³ |
| HTHS 150 °C | not stated | |
| Sulphated ash | 0.8 % | 0.8 % |
All 5W-40 C3 oils → See the class table for a detailed comparison with other oils.
Specifications and approvals
- Specification
- ACEA C3 · API SN/CF
- Approvals and recommendations
- BMW LL-04, GM dexos2, Fiat 9.55535-S2, MB 226.5/229.31, RN0700/0710, VW 502 00/505 00
Similar oils
Oils in the 5W-40 C3 class with the closest parameters and the same specification.
- Valvoline SynPower MST C3 5W-40ACEA C3 · API SN/CF
- Selenia Multipower Gas 5W-40ACEA C3 · API SM
- eni i-Sint MS 5W-40ACEA C3, A3/B4 · API SM/CF
- Castrol EDGE Turbo Diesel 5W-40ACEA C3 · API SN/CF
- Gulf Formula ULE 5W-40ACEA C3 · API SN
- 77 Lubricants Motor Oil LE 5W-40ACEA C3 (prekračuje) · API SP