To check fuel consumption for the Ford Fox, follow these steps:

1. Record the Initial Fuel Level: Fill up your Ford Fox's fuel tank completely and record the fuel level on the fuel gauge or fuel pump.

2. Drive the Vehicle: Drive your Ford Fox for a consistent distance, such as 100 miles, to ensure accurate results.

3. Refill the Fuel Tank: After the drive, stop at a gas station and fill up the fuel tank to the same level as before.

4. Calculate the Fuel Used: Subtract the initial fuel level from the final fuel level to determine the amount of fuel used.

5. Determine Fuel Consumption: Divide the distance driven by the amount of fuel used to calculate the fuel consumption rate in miles per gallon (mpg).

For example, if you filled the tank to 10 gallons and after driving 100 miles, you refilled to 10 gallons again, you used 0 gallons of fuel. Your fuel consumption would be 100 miles / 0 gallons = 0 mpg, which is not realistic. However, if you used 5 gallons of fuel over 100 miles, your fuel consumption would be 100 miles / 5 gallons = 20 mpg.

This method is effective because it provides a direct measure of fuel efficiency over a specific distance, which is a common way to evaluate a vehicle's performance. According to the U.S. Environmental Protection Agency (EPA), the average fuel efficiency for a compact car in the United States is around 28 mpg. The Ford Fox, being a compact car, would likely fall within this range, depending on its specific model and year. Monitoring fuel consumption regularly can help drivers understand their vehicle's efficiency and identify areas for improvement, such as driving habits or vehicle maintenance.