Slick 50 was the first real oil treatment. I think they use derivatives of DuPont's Teflon, and if so, they are the only ones who can (license thing). I will say this: my stepfather's 1985 Buick Regal developed a valve tick at 75,000 miles. He bought the car brand new, so this was about 1989 or 1990 I think. The engine was a 231 with a 2bbl carb. He used Slick 50 at an oil change, and not only did the tick go away, but the engine lasted for another 70k. When the car was ready for the junk yard in 1997, the body was rotted, the head liner sagged, the wipers didn't work half the time, the fuel tank leaked, and the front shocks were gone. But the engine still ran smooth and strong (even though it leaked a quart a week). I'm not advising you to buy it, though. I don't believe in using those additives, either. But I think this does make a strong case to use Slick 50 if you are going to use one.