Thanks for adding support for miles & litres together for us UK users! I've set my car to use these but the stats seem to be wrongly assuming my odometer is in km.
I deleted my fuel ups and used the CSV import to re-enter them. (Nice one btw!) Each fuel up I entered was ~600 miles but my average miles per fuel up is showing as 388 at the moment. (Also my mpg isn't that bad!) The car settings page definitely thinks the car is using miles.