I popped in because my tire pressure light was on, and also because I had bought my car a month ago with a little over 100k miles on it and I wanted to make sure everything checked out. An energetic guy by the name of Roman checked out my tires while humming merrily, and then answered all of my new-car-owner questions about maintenance for the next ten minutes. After everything was set I asked where I should pay, and his response was, "Pff. Air is free." So is consultation, apparently. Very generous of them.