This week on Car Talk, we wade into the seldom-charted waters of gas pump etiquette. Heidi's got a nifty maneuver to get the last few drops out of her hose, but was alarmed to learn she might be practicing Petrol Larceny. Also, could the essence of Car Talk really be expressed by one single word? Plus, Bruce in Illinois shares another reminder why you should never buy a car from your brother, a Saturn keeps mooing long past the pasture, and a sure-fire way to test a relationship: cook your girlfriend's transmission. All this, plus a few more signs you may need a new car, this week on Car Talk.