Has anyone used the oil change DIY extractor shown here:
http://www.bmw325i.net/maint_oil_extractor.shtml
Many have used on the BMW and I know Mercedes dealers use them. Some argue that the sediments at the bottom of oil pan will not be removed while others claim that it will work if the engine oil is hot with sediments suspended. But will it work on the Porsche since the oil filler tube is so long?? Anyone tried it??