I only have 6,000 miles on my 03 SAAB 9³. I changed the factory fill at 3,000 with SAAB 0W-30 turbo oil. I drive 90% city driving, with alot of stop and go driving. My SID shows my average speed as 27 mph. I will be sending in the oil for a UOA tomorrow. I know the SAAB turbo oil can go 15,000 miles or more. A fellow 9³ SS owner has done it. His UOA was pretty good. I just want to see how the UOA will look with only 3,000 miles on it. If it comes back with a really high TBN count. I will probably go to 5,000 OCI. I will put no more then 10,000 miles on my car a year. I bought the Mobil 1R just to try it. I will also drian it at 3,000 miles and send it in for a UAO. I will probably stick with the SAAB oil after that.