So I did my first oil change myself on my EcoD. Thought Shell Rotella T6 was the way to go at the time. Not long after I did it I come on this forum and see that it is no longer approved by Fiat Chrysler. I’ve been doing so much reading on this I’m just confused now. From what I gather there is nothing wrong with the Rotella and there is no way it should cause any harm to our engines right?