Oxygenated is more of a general term that could mean different things depending on the exact fuel though. It is known that Q16 is corrosive though and will eat away at your fuel tank, if you leave it in too long.
One of the biggest problems with the old 1600s are that they are not linear. More pulse width from the computer doesn't always actually give more fuel out of the injector(it can give less) at low flow, which makes them a pain to tune at idle/low load.
Not all of these 2000cc-2400cc injectors are the same or the same quality.
http://www.t1racedevelopment.com/en/...ed-equal-.html
http://injectordynamics.blogspot.com...4d71d5f993d297