Hi there Dave,

There's a lot to agree with in your latest comment. Just getting the bit I disagree with slightly -- though its more about the flavour of the pudding than the pudding itself -- is the need to get the consumers interested before carmakers and engine manufacturers.

Its chickens and eggs, its not which came first, but how long did it take them to simultaneously evolve. We have to move on both fronts at the same time.

But in any case the whole thing falls flat if there's no consistent standard for the products, and firms that don't conform to that need to be named and shamed. A bit tough, but the great thing about gas is that its the same nozzel to nozzel, station to station and company to company. Is the same true for biofuels in within states in Aus?

That's the way to get big oil, with its distribution channels interested. They're big enough to take the politicos with them.