1) The manual method: This is the most accurate way to find out your gas mileage. You will need to:
* Fill up your gas tank until the pump clicks off.
* Reset your trip odometer to zero.
* Drive for a known distance (e.g., 100 miles).
* Fill up your gas tank again until the pump clicks off.
* Divide the number of miles you drove by the number of gallons of gas you used. The result is your gas mileage in miles per gallon (mpg).
2) The dashboard display method: Many newer cars have a dashboard display that shows the car's current gas mileage. This method is not as accurate as the manual method, but it can give you a good idea of how your car is performing.
Keep in mind that gas mileage can vary depending on a number of factors, such as:
* The age and condition of your car
* The type of gas you use
* Your driving habits
* The weather conditions
