Also, the details on
http://www.fuelly.com/faq/17/switch-to-metric are incorrect. It currently states:
When you switch to UK, you'll view fuel volume in Litres, distance in kilometers, and fuel economy in UK MPG (Miles/Imperial Gallon).
This should read:
When you switch to UK, you'll view fuel volume in Litres, distance in miles, and fuel economy in UK MPG (Miles/Imperial Gallon).
This is what the site currently does.