Originally Posted by Sean05
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.
In the case of the TWS, it is just a labeling change. The product is still the same. I have no idea what the difference is with the other non-M oils. Most likely just marketing.