from my understanding... they have been labeling the new Castrol Edge with Edge Professional. Even the one in Walmart is labeled professional (FYI not the 10w 60 but the regular oil is marked as professional. Sounds like they are changing the oil a bit for better use....
not sure if they will still produce the edge or edge sport but definately i have not seen the edge or edge sport in our local auto shop... unless they have old stock.
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