This week, Car Talk kicks off with a Puzzler mea culpa. Who knew that Stamford, Connecticut, was not the only US city with a certain geographic oddity? Apparently, a few thousand of our listeners. Then it's off to Las Cruces, New Mexico, where the biggest oddity is the cricket-like noise coming from Ramey's Mazda. Meanwhile, David in South Dakota is wondering why birds are so attracted to his Chevy Silverado, and why they have to leave their calling cards. Also, a road trip with a friend turns into a seminar on bad car advice, a Toyota Matrix gets a mysterious mileage boost, and where oh where has all of Gianpaolo's oil gone? All this, plus a new Puzzler from the 4's Series, and more, this week on Car Talk.