Methods and systems are provided for determining a fuel level of a fuel tank. In one example, a method may include transiently powering a fuel level sensor responsive to a fuel tank refilling event to obtain a fuel level measurement, maintaining the fuel level sensor unpowered after obtaining the fuel level measurement, and, while maintaining the fuel level sensor unpowered, inferring the fuel level based the obtained fuel tank fuel level measurement and an amount of fuel consumed since the obtained fuel level measurement. In this way, electrical power consumption by the fuel level sensor is reduced while a fuel level indication is provided.