Engine oil technical data · Eni
Eni i-Sigma top MS 10W-40
Eni i-Sigma top MS 10W-40 is a 10W-40 engine oil (ACEA E6, E7, E9 · API CK-4). According to the manufacturer's data sheet it has a viscosity of 98 mm²/s at 40 °C, 14.9 mm²/s at 100 °C, a viscosity index of 159, a TBN of 10.1 mg KOH/g and a pour point of −36 °C.
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 | 14.9 mm²/s | 14.5 mm²/s |
| Viscosity index | 159 | 154 |
| TBN | 10.1 mg KOH/g | 10.5 mg KOH/g |
| CCS −25 °C | 5369 mPa·s | 6325 mPa·s |
| Pour point | −36 °C | −39 °C |
| Flash point | 224 °C | 230 °C |
| Density | 0.857 g/cm³ | 0.865 g/cm³ |
| HTHS 150 °C | not statedNot stated by the manufacturer. ACEA E6 requires at least 3.5 mPa·s. | |
| Sulphated ash | not statedNot stated by the manufacturer. ACEA E6 allows at most 1 %. |
All 10W-40 oils → See the class table for a detailed comparison with other oils.
Specifications and approvals
- Specification
- ACEA E6, E7, E9 · API CK-4
- Oils by specification
Similar oils
Oils in the 10W-40 class with the closest parameters and the same specification.
- Shell Rimula R6 LM 10W-40ACEA E6, E9 · API CJ-4, CI-4, CH-4
- Q8 T 904 10W-40ACEA E6, E7, E8 · API CI-4
- Castrol Vecton Long Drain 10W-40 E6/E9ACEA E6, E7, E9 · API CJ-4
- TotalEnergies Rubia TIR 8900 10W-40ACEA E6, E7, E9 · API CJ-4, CI-4, CH-4
- Liqui Moly Top Tec Truck 4050 10W-40ACEA E6, E7, E8, E9, E11 · API CK-4
- Ravenol Euro IV Truck 10W-40ACEA E6, E7 · API CI-4