Been a fair amount of discussion over Quaker States Ultimate Protection here. One of the points of discussion has been whether or not it was really any different from the full synthetic. From reviewing the PDS sheets and VOA's they look very similar, except the Ultimate had an MRV of about half of that of the full synthetic. That made me suspicious it might be GTL, but I've had a hard time finding an SDS. Today I was finally able to overcome Shell's ridiculously complicated SDS search...
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