I am afraid I am going to have to be sceptical, that wide a range of fuel is going to make for some hellish corrosion issues:
A year ago I went to the US and helped my grandad (truck mechanic) out, we spent a great deal of time replacing seals and sorting engines out that did not play well even with low percentage of biodiesel fuels (10-15%).
3 years prior (when a percentage of biodiesel was a novelty of sorts) to that is was usual mechanical/electrical issues.
Likewise I can design something to take corrosion but organic products are notoriously unreliable (I played around with fuels cells using ethanol fuel and it was not easy).