[songman]

This is a Honda Type R, with a factory consumption figure of 31mpg.

The weird thing is also the petrol gauge, which you'll see hasn't moved off the very top. The car has a capacity of 50 litres. Usually when I fill up, I get to about 47 litres, then top off with a few additional squirts. On this occasion I got to the usual level, started topping off, and it just went on and on...up to over 54 litres.

This appears to be impossible, and I note again that the fuel indicator is still on maximum - it usually starts to descend after about 50 miles, and as of today it still hasn't moved after 110 miles. Did I somehow tap into a fuel reserve I'd never got to before? I can't explain how I got 54 litres into a 50 litre tank that still had about a gallon remaining.