Hello everyone I just have a quick question im new to the mustang comunity so i dont know much. Im curious i have a 04 Mustang Gt 4.6L and i run it with 87 octance like the manual says and i know this sounds stupid and newb but im going to ask anyways. I was told i should not run it with anything other than that . but i was wondering if thier would be any gains/advantages or disadvantages if i ran it with 93 octane fuel? please comment back on this . thanks