Eni i-Sigma performance CH HBN 15W-40

Worth knowing

In Eni’s data sheets this oil and CI HBN 15W-40 from the same line differ by a single row: API CH-4 here, CI-4 there. The ACEA classes, API SL, the list of requirements met and every typical figure, from the viscosity of 13.5 mm²/s at 100 °C to the base number of 12.5 mg KOH/g, are the same in both documents. According to the article on the API CH-4 class, CH-4 was designed for fuel with up to 0.5 % sulphur, although oil life is less sensitive to higher-sulphur fuel than with CG-4.

Approvals for two codes this oil only claims, MTU Oil Category 2 and Volvo VDS-3, are held by Eni i-Sigma performance E7 15W-40, which lists API CH-4 and CI-4 together and has the same ACEA classes. It too only meets MAN M 3275-1, and MB 228.3 appears there under the new Daimler Truck designation, DTFR 15B110, with the same status. The E7 15W-40 has a lower base number: 9.1 mg KOH/g against 12.5.