PEH, that's slick ! what a perfect way to change oil and stay clean. I'm buying second plugs for all my cars for oil change weekend! Another option for changing oil is the Topsider suck it out the drain tube thing. I've seen it used by boaters with great success and had heard it actually gets out more oil than a gravity drain. Clean and quick I'd guess and just about perfect for a 300d etc with the oil filter up top.