ethanol = shit for engines. f@$k the environment, if i wanted to save trees i wouldn't drive a car at all
i'd be interested in the distilling process and the sulphur content of this fuel
normal optimax is still just unleaded with additives, and it mixes crap with other petroleum based products, like oil, or other petrols, so you need to flush your fuel system to use it. and ask any 2 stroke engine users (go karters) or rotary enthusiasts, optimax is a great way to kill your combustion-oil-mixing engine
normal optimax has double the minimum sulphur content of ultimate as well. sulphur also = bad
optimax has a pretty crap reputation, i think this is just shell trying to bring something new out to compete beacuse bp has the best product. their fuel is the most expensive and they don't have stupid 4c fuel vouchers, i wouldn't change from ultimate ever, and i know alot of car enthusiasts who think the same