Eni i-Sigma monograde HBN SAE 50

EniEni i-Sigma monograde linecommercial vehicles50

A single-grade SAE 50 engine oil rated API CF and API SJ, with a high base number, for heavily loaded diesel engines.

Classification
Product line Eni i-Sigma monograde 8 oils
SAE viscosity 50What SAE means
Intended use commercial vehicles
API class What API means
Typical properties
Viscosity at 40 °C 219 mm²/s
Viscosity at 100 °C 18.9 mm²/s
Viscosity index 97
Pour point -24 °C
Flash point 240 °C
Density 902 kg/m³

Description

Eni i-Sigma monograde HBN SAE 50 is a single-grade engine oil from the i-Sigma monograde line for high-output naturally aspirated and turbocharged diesel engines under heavy load. It has a high base number and is intended above all for fuel with a very high sulphur content; the data sheet does not give the exact value.

The oil is rated API CF and API SJ; the data sheet lists no official manufacturer approvals.

Typical figures: kinematic viscosity 219 mm²/s at 40 °C and 18.9 mm²/s at 100 °C, viscosity index 97, pour point -24 °C, flash point 240 °C, density 902 kg/m³.

Application

High-output naturally aspirated and turbocharged diesel engines under heavy load, especially on fuel with a very high sulphur content.

Worth knowing

This oil does not differ in API classes from its neighbour, Eni i-Sigma monograde SAE 50: both carry API CF and API SJ. The difference lies elsewhere. The standard version has a base number of 9.8 mg KOH/g on its data sheet, whereas the HBN data sheet, although high alkalinity is in its name, gives no figure, so the documents do not show how much higher it is. For HBN SAE 40 of the same line the data sheet gives 11.5 mg KOH/g, but that is a different viscosity grade: the figure cannot be carried over to SAE 50, and the SAE 40 oil is no substitute for it.

The military specifications MIL-L-2104D and MIL-L-46152C, which the data sheet of the standard SAE 50 lists, do not appear on the HBN data sheet, so where exactly that entry is required this oil does not provide it. The article “API CF Class” covers what class CF requires of oils for diesels running on higher-sulphur fuel.

Data current as of Check the label and the current product data sheet before you buy.

Sources

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