Hello together, I drive a Saab 3.0TiD Sportcombi and want to make an oil change soon! has one of you experiences with the Mobile Motor Oil Mobil1 0W-40 for TurboDiesel? Is this high-quality engine oil an alternative to Mobil Synt. 5W40 or the official Saab oil? Do I do something good with it? Or is the recommended oil the better? How do you look with the guarantee if you use a different oil?? Do you have any idea about this?