my CTS has 7% left in oil, and I called the dealer but I have to make a appointment...to make it short I need to do a oil change, where and what type of oil I need?:hmm:

If you have 7% left you should be fine until the car tells you to go get it changed. I drove my car until it was down to 1% then brought it in for a change. So just make the appointment and let them change it. They should be using Mobil 1 synthetic

If you use the Mobil 1 you're talking about a $70 to $80 w/filter. Do it yourself for $35-$40