I have no reason to believe that the newer unlicensed WM Dex/Merc is of any less quality than previous, licensed version. Now they are not paying the fee to license, they certainly have enough money to make a decent, modern formula? Maybe not.... I would use it without worries, though. I'm sure it is probably a modern version of DexIII, like the "H" spec. It works out to 1.75 per quart when purchased by the gallon, so a great value at the everyday price.