2question. My mpg seems to have changed since last time I looked at site I'd only done the 2 fuel ups and seems to be showing about 4 mpg less.
Also just done 3 rd fule up and no mileage data showing is this supposed to be instant or is it overnight or something?
First, make sure you're viewing the site in the correct units. In the upper left corner of every page is a series of links: US, UK, Metric. Make sure UK is selected. You can also go into your site preferences and make sure you have UK selected for display units. That way the site will choose the correct units for you when you log in. (But keep in mind that the default display is US. If you're logged out, that's what you will see until you click the UK link or log in.)
On mileage info: your May 16 fuel-up has a bad odometer reading. You put in 12616, but your previous fuel-up was 126348. Looks like you're just missing a digit. If you fix that up you should be set.