Are you after refueling will want to record their own car this time or next time how much fuel consumption, but can not find tools to recorded. This tool features: 1. When input new data , immediately and automatically calculates how much the average fuel consumption and unit price. 2. When input new data , input over oil name or car name have provide the selected window. 3. Data is available to add, modify, and delete reading. 4. Intuitive forms can zoom in or out. 5. Provide an average fuel