An auto gauge is a device used to measure various aspects of a vehicle, such as speed, fuel level, and engine performance. The crossword solutions for the term auto gauge include ODOMETER (8 letters), tach (4 letters), EMPTY (5 letters), ammeter (7 letters), speedo (6 letters), and METER (5 letters). An ODOMETER measures the total distance traveled by a vehicle, a tachometer measures the rotational speed of an engine, an EMPTY indicates the fuel level of a vehicle, an ammeter measures the current flowing through an electrical circuit, a speedo measures the speed of a vehicle, and a METER is a general term for any device used to measure a physical quantity.