Sorry to revive this thread after a week but I just thought I would add a comment since I am in Aus and nearly all petrol stations here are now selling E10, standard unleaded and premium unleaded. Even our version of Touring cars the V8 series are using E10 fuel. There has been much discussion here over it, the reason for it of course is that it is supposedly more green.
Basically there is no proof that there is any harm done to an engine or that it reduces power in any way, but it is all very new. The main reason most reviewers don't recommend using it, is that the fuel economy is rubbish and the 5 cents or so a liter you save does not cover the extra you use. This seems to be backed up by the V8 drivers who have said power is the same but fuel economy has decreased by about 15% I think they said.
Out of interest what is the best fuel to use for a 3200?
Howie