Pianoman

I've just read this post - very interesting. Ever since I bought my 2010 XF the fuel gauge reading and range have differed from the amount of fuel put into the tank. Last week the Low Fuel message popped up, even though I knew I had over 180 miles to go. I went through the system settings on the centre console screen and it was registering 189 miles; yet the small screen over the steering wheel is still showing Low Fuel Level. Are these two read-outs not linked?