Instructions:  Under Mileage Stats, enter values into two of the "green" fields. Leave one of the "green" fields set to 0 and the program will calculate the value for that field. For example: to determine Gallons Used, enter values for Miles Traveled and Miles Per Gallon. Enter the total tank size and reserve tank size of your model. (The standard tank size is 5.3 gallons - 6.9 gallons for the Interstate. Reserve tank is 1.1 gallons for all factory models.) The fields under Trip Stats are provided for your convenience and are optional. Click the Submit button to view the results.