Do your self a big favor and stay away from the "quickie lube" you have a very good chance of getting a cheap paper filter and/or the wrong oil. It's very easy to change the oil yourself. Then you KNOW it was done right with the correct filter and oil. BTW I only add 8 qt's of oil and that brings me to the full mark. If I put in 8 1/2 I will get the "HI" warning on the dash when driving. Check out this link. http://www.slk32.com/pages/gotopages/howto.html and click on how to change the oil.