Hi, just record what it says on your odometer and enter the numbers you have into the form: odometer, litres, and price per litre. Skip everything else and click "fuel-up". Try that out and if you get any errors about the numbers, the error messages should steer you in the right direction.
You won't get an MPG calculation on your first fuel-up, but you'll get more information as you add more fuel-ups.
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