All fuel prices will keep going up and up. That's the reality of what is happening. The pound is falling due to the realisation (at last) by the finance sector that the UK balance of payment deficit and indebtedness is like the US and so the UK economy must follow suit.
Bio fuel is not the answer and it will not drive down prices. Only falling demand has that ability and that is unlikely unless we get a full on recession with job losses and stuff.
Current highest estimates are £1.50 by October.
So folks buy a more fuel efficient car now. Good for the environment good for the pocket
Chris