How do I start? Enter my first fuel up?
 

Picked up my new car, with delivery mileage of 9 miles. Went straight to the petrol station and filled to the top with 23.19 litres at cost of £23.86 What do I do in the data entry? Dummies guide required please.

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.

Just enter a starting fuel up with 9 miles for odo reading and something like 0.1 gallons for the amount of fuel (not important). When you fill up the next time, you will get your fuel economy calculated over your first tank.