Yes. After tapping the 'i' button in the lower-right corner of the main screen, enter "Edit" mode by tapping the "Edit" button at the upper-left hand corner of the vehicle list screen. Then, tap the "add vehicle" button (the '+' button) that appears at the upper-left corner of the screen. Select your vehicle by choosing the year, make, model, and engine size. Finally, choose your odometer type and distance units. If you would like to change the name of your vehicle or the units that you'd like to enter fill-up data with (MPG, km/L, L/100km), do so by tapping the vehicle name row. Finally, save the new vehicle and tap the "Done" buttons until the main AccuFuel screen appears. You are now ready to enter in a new fill-up.