David:
Mobil 1 does have a C license, but it is CF, which is 3 approvals back of the current CI formulation. Additionally, the order of the license is important. You will note that the SL, SJ appears first, meaning the
oil has qualified under that license, meeting all the requirements thereof. That means it will have to meet the .10% phos requirement(GF-2). However, it still meets the requirement of the CF license. Don't read into this that it cannot pass or meet the current CI license. Sometimes the
oil companies do not get the current C license(or vice versa) because of the added expense of getting the diesel license, because they know the
oil will primarily be used in gasoline engines. There is no problem with Mobil 1, I use it in everything also, I just thought it was an interesting fact for everyone to know.
There is also a Delvac 1, and I will check its API approvals to see what it carries.
I will try to see if the SL Mobil 1 could qualify under the CI license and post here.
Jerry