Eni i-Sigma monograde HBN SAE 40

EniEni i-Sigma monograde linecommercial vehicles40

A single-grade SAE 40 engine oil rated API CF and API SJ, with a high base number, for diesel engines in very severe service.

Classification
Product line Eni i-Sigma monograde 8 oils
SAE viscosity 40What SAE means
Intended use commercial vehicles
API class What API means
Typical properties
Viscosity at 100 °C 14.4 mm²/s
Viscosity index 105
Pour point -24 °C
Flash point 260 °C
Base number (TBN) 11.5 mg KOH/g
Density 895 kg/m³

Description

Eni i-Sigma monograde HBN SAE 40 is a single-grade engine oil from the i-Sigma monograde line for turbocharged and naturally aspirated diesel engines that work in very severe service or are prone to deposits and wear. Its high base number is intended above all for high-sulphur fuel.

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

Typical figures: kinematic viscosity 14.4 mm²/s at 100 °C, viscosity index 105, base number 11.5, pour point -24 °C, flash point 260 °C, density 895 kg/m³.

Application

Turbocharged and naturally aspirated diesel engines in very severe service or prone to deposits and wear, especially on high-sulphur fuel.

Worth knowing

Eni links this oil’s high base number, 11.5 mg KOH/g, to high-sulphur fuel, and that fits its only diesel class: API CF was drawn up for diesels running on fuel of varying quality, including sulphur above 0.5 % by mass. API itself has moved CF to its obsolete classes and no longer licenses new oils to it; what to look for if your engine’s documentation still names CF is covered in the article on the API CF class.

Among the oils of this brand in the catalogue, two others carry class CF at viscosity grade SAE 40. AGIP Novecento Truck 40 has the same 14.4 mm²/s at 100 °C and viscosity index 105, but of the API classes only CF is recorded for it, with no SJ. The other, Eni i-Sigma monograde SAE 40 without the HBN suffix, has 14.5 mm²/s and a base number of 9.8 mg KOH/g by the same ASTM D 2896 method, which means a smaller reserve of the alkaline additives that neutralise acidic combustion products.

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

Sources

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