My dealer has "Lifetime free oil changes" painted on the outside of his service bays. When I bought the car they gave me a card that says the same thing. I was the last (and probably first) Crossfire that got the card. Didn't take them long to figure it out. The dealership has changed hands and the new guys still honor the card. I'm sure that they hope to make it up in other service, but free oil for a Crossfire is a ton of other service.

The service guys can't believe that I have a card when I bring the car in. I always have to show the card and it always draws a crowd of service guys who laugh and snicker about it. They know some sales boof screwed up big time. But a deal is a deal.