whatever!!!! lol anyway yes unleaded but why would you want to run that?? you wanna stay in the 90 for the reason you would need to run a 15:1 ratio for that fuel. and the G6 dont have that the most you could use is 93 and get something get a tune do some water injection and a turbo and CAI and that should give you more than what your asking for it woke up my car!
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