Any help and advice on what engine oil to use on my 2.8 Z3. After loosing faith in the garage i've been using for years i've decided to start doing as much as i can on my car and van my self but its years since i got my hands dirty working on cars so any advice is more than welcome. My z has done 85000 miles if that makes any difference ? I was kindly given a service light reset tool and an air bag light reset tool at the 'drive to the wall' at the weekend by a .org member from Newark,and because of my 2 minute memory can't remember his name ! Not sure how they work either other than plugging them into that big round thing under the bonnet.So what make of oil,quantity,filter with 'o' rings ?,copper sump plug washer and the best place to buy it from ?. If any one on here needs the use of the reset tools you're welcome to borrow them. Thanks in advance.