You can use E10 in it but in my opinion its not worth it.
On average its 15 cents cheaper than 91 RON and even though it says it is 94 RON I lost a lot of power when using it, also on average you use a extra 30% fuel compared to regular fuel. (taken from wiki and experienced by myself) So being cheaper still doesn't make it value for money.
Ethanol will also corrode metals and make fuel lines and rubbers perish. E10 wont be as harsh as E85 and many people use E10 with no problems.
From experience 98 RON fuel is best for V6's, I could easily tell if hypothetically someone filled up my tank with 91 or 98. V6's (Ecotecs) Have a pretty decent high compression compared to the V8's, the high compression the better the higher RON fuel will burn. Not enough RON and your engine will ping.
I wouldn't recommend E10 but if you want to give it a try then go for it.