Imperial/Metric choices for both distance and volume (separated out)

[robertstokes]

What would be the chances of separating out the distance and volume measurements so you can choose Imperial or Metric for each?

Here in the UK, we still use miles for our odometers (and road signs) but have been forced by the EU to use litres at the pumps. So although we deal with MPG when looking at fuel consumption, the pump doesn't actually tell us in gallons how much we put in (and fuel prices are only displayed in £ per litre).

Crazy I know, but to save us having to do a conversion before entering the numbers in Fuelly, it would be great to put in our trip/odometer reading in miles and put in how much fuel we just pumped in litres. It wouldn't be too much trouble for Fuelly to do the conversions to show MPG then.

Otherwise we've got to convert the pump reading to gallons (or our odometer reading to kilometres) ourselves before updating Fuelly on our mobiles, which isn't exactly convenient.