Insurance what a piss take.

[tommyardin]

Got it, the government can keep their environment cash cow.
Low co2 transport use a fuel with a green dye in it with low tax added.
Med co2 use fuel with a blue dye
high co2 use black dye

Hmm how to police it, perhaps have a chip in the nozzle and one in the cap that will only unlock with the right one.
Hmm that wont work cause you could use the right one just to open your cap and then fill up with the cheaper one.
So you have imobilising nano particles in the fuel that means if you put the wrong one in then you cannot start it, alongside that you have the chip in the cap to prevent accidental wrong fuel filling.
SORTED   

Yeah and it's only £4.99 a litre  :'(