I've said it before, it puffed smoke like crazy. Unplugging the brake booster vacuum line and letting the car stall out on seafoam is not rocket science, so I think that we can move on from the notion that I incorrectly seafoamed the car. The smoke is all fine and good, but what good did it do? None. The car didn't run any smoother or seem peppier. It may work wonders on some cars, but it was a waste of time for me. Both of those pictures of the dipstick are of USED motor oil. Please read what I wrote in that post: the first shot is of M1 SS @ 5,000 miles, and the second shot is M1 SS @ 5,000 miles and post 8oz Seafoam in the crank case idling for 10min. Maybe it has worked wonders on some cars, but mine is not one of them. My plugs were changed after seafoaming, and still....the same car I've had all along.