Finding a great mechanic is probably the single most important thing you can do to keep your car running for years to come. (And for that, we have the Car Talk Mechanics Files)

But how do you get the best work from that mechanic?

By being a great customer, that's how. Your mechanic has to rely on you for important information about your car. And because he's only human (even if he's right on the borderline), he'll go the extra mile for you if you do the same for him.

What can you do to be a great customer other than bringing fresh brownies? The lackeys of Car Talk recently sat down to discuss this very topic with Tom and Ray.

What makes for a great customer? Join our discussion.