Sweet Old Bruce says... Schwepco
So we must believe, right? Keep in mind, Bruce wrote his Schwepco plugging piece some time ago. I've used Schwepco...I like the TORCO synthetic better. I will admit that I don't speed shift these days...a lesson learned from a bitter and somewhat co$tly experience. Schwepco works. I just happen to believe, for my purpose at least, that synthetic works better.