Changed the oil for the first time in my 1.9L Z3, following instructions posted on the FAQ. Everthing went smooth. Did find an oil filter cap wrence made by RiteFit at a CAP automotive store, fits over the top of the oil filter cap and has a 3/8" socket fitting. Made the job of getting the filter out and retorque much easier. Pep Boys also carries these cap wrenches size B fits the 1.9L. The topsider is a God sent, especially because it was 38 degrees today, not weather to lay on your back. Took about 20 mimutes to drain oil had to re prime twice but that was OK. Nice and clean way to do things.