Gas gauge is a term used to refer to an instrument panel in a vehicle that indicates the amount of fuel in the tank. Apart from gas gauge, there are several synonyms that can be used to refer to this instrument. Some of these synonyms include fuel gauge, petrol gauge, gas meter, and tank gauge. A fuel gauge is an essential component in a vehicle as it helps drivers to know when they need to refuel their vehicles. With the different synonyms for gas gauge, one can use the term that best suits their preference while passing on the intended message concerning the amount of fuel in a vehicle.