Today my mom asked me to take her car to the local GM dealer which has a quick lube attached to it. She goes here all the time and is relatively happy. It's a '02 Grand Prix and they use AC filters and the Goodwrench oil so it's using decent items. However, one of their grease monkeys showed me a handful of grease and told me she had a bad CV boot. I told them I'd look into it and once I got home and I jacked the car up. All of the boots were intact and there was no evidence of grease on any of them. I think that is a shame because until this point we had never had a reason to complain about this particular place.