Well guys I did the sea foam in my 04 Ranger and got nothing. No smoke, but it feels like it runs a little smoother. I also used it on my girlfriends car which has 150,000 miles on it and got nothing with it either. WTF? I know its probably a good sign but It would have made me feel better to see something, you know see that it is actually doing what it is supposed to instead of hoping it did. I thought for sure the GFs car would smoke. Im kinda dissapointed....I wanted smoke!