I have less that 13,000 miles on this car. I also have a 1992 Sedan Deville with just over 109,000 miles. I don't drive either of them a lot of miles but I get on the freeway often and blow out the dust. The only situation I have is, due to a dead battery, I have lost all communication with Onstar. Right now I am concerned about the cost of first service. The Onstar situation is a seperate matter. If you can just address my question, then I'll know if I should proceed with the service.