Worked wonders in my 89 Jeep with high miles. I threw that sucker in the crankcase and in the gas. Put some of the leftovers in my BMW, same spot. Did not notice a difference in the BMW, but the Jeep I did, granted, the BMW has only 61 K on it. This weekend going to throw some in the wifes Mustang 5.0 vert, has over 140K on it. I imagine it will help alot. Just my experience.
2006 M5 E60, "Lord Vader" Last real NA M series
German Car Fanatic