14 mpg, WTF?!!!!
my car has just started doing 14mpg! She's a 2.0 Selespeed with 74,000 miles on the clock, everything seems normal, she pulls well, drives the same as usual. There is no petrol smell emanating from under the bonnet or anywhere else. A similar thing happened a few weeks ago, I got a similar mileage from one tank and then everything went back to normal. Now it's happened again. It's probably coincidence (?) but it's happened in hot weather both times. What could it be, any ideas?