I mentioned in the fist thread I posted about the Scavenger total oil change system that my wife bought one for me as an anniversary gift. Well I got around to using it yesterday and I couldn't be more pleased with the results. The system works as advertised getting all the dirty oil out of the engine. It is one thing to see it done on a promotional video and another to see it in person. I will never change my oil without it. Very simple to use. It is definitely the best $100 purchase my wife as ever made!