I have a simple question, has anyone else noticed that there are 2 different Dexos 2 oils available? When I bought my diesel a month ago my father changed the oil at his dealership since the car was a leftover model. He used Dexos 2 in a green container that was marked fully synthetic. I just went to the parts counter at my brothers dealership and bought a quart to have, it is a blue container that is marked synthetic blend. The part numbers are the same as far as I can tell. I am a bit confused as to the differences, I am guessing that they changed the container at some point, but I don't know why they are marked differently.