This car is known as Buick Regal in the US, up to MY2012 they were even manufactured on the same factory in Germany. 2.0 diesel in this car is not a GM design, but rather Fiat 2.0 Multijet. I don't know what is factory fill, but since the only oil allowed is Dexos2, i assume that FF is GM Dexos2 (manufactured by Total)
Based on the results, it seems that the oil is holding very well, especially with heavy city driving pattern where the main route is only 10 km. However, i have doubts it would survive the designated OCI of 15k km. Also, very surprising is a total lack of molybdenum, i was under impression that Dexos2 spec would have moly-based additives.
Based on the results, it seems that the oil is holding very well, especially with heavy city driving pattern where the main route is only 10 km. However, i have doubts it would survive the designated OCI of 15k km. Also, very surprising is a total lack of molybdenum, i was under impression that Dexos2 spec would have moly-based additives.