I have delivered bulk plastic to the company that makes the oil bottles in Cincinnati, OH, and the foreman there said that NAPA, Carquest, Speedway and several other brands that I can't remember are Valvoline. The Valvoline bottles are made there, too. He said that the off brand oil comes from the same bulk container as Valvoline. So to make a long story short, if you use Valvoline, save your bux and get the store brand, 'cause it's the same thing.