eco fuel gauge is an application that calculates the fuel consumption of cars. Gas mileage is calculated by entering the amount of mileage and fuel. Has the following features: 1. List. 2. Aggregate. 3. Graph. 4. Vehicle Notes. The following fuel types are displayed. 1. km/L. 2. mi/L. 3. MPG. 4. L/100km. Please refer to the Manual in HP.