I just stocked up some BC on sale at Advance Auto (3.97/qt). The store I went to still stocks the Belgian version and I noticed the label proclaims it to be full synthetic, but there is no disclaimer that says for sale in North America only. I have seen the US formulated version and it has the disclaimer on the bottle. I'm not convinced the group IV products are superior but think the disclaimer would be there if it was a group III based oil. Comments ?