My question would be...who supplies fuel to the supermarkets? They obviously don't brew it themselves. Just a thought.
Another thought: buy a diesel car/bike. Run it on sunflower oil.
(Of course, you'd still have to pay tax on the sunflower oil and, like every good citizen, you *would* inform Mr.Taxman that you were using a vegetable oil for a fuel. Wouldn't you?!)
Just outta curiosity, how much of that £1/litre is tax?
