esp4p3 said:Any people who own 4th or 5th gen ludes that have consistenly used 87 octane gas? And what did you notice? Was there a knock? Or a reduction in mpg or hp? Any engine damage?
I am very curious because I am having a heated debate about this very subject with a co-worker. He says that I am getting taken by buying 91 even though I told him the prelude says 91 only. He says that his mercedes says the same thing and he uses 87 and his car has never knocked or anything. I tried to tell him that with a higher compression ratio you need a higher octane to prevent knocking. He says that may be true for a race car but not for my car. I am convinced that he is damaging his car over time but he says he uses 87 all the time.
Does anyone have some technical documents that back this arguement up? I would love to show him something.
wow... no offense dude but these are incorrect and ignorant statements, respectively.SuperSeven said:I know that My Prelude S, with it's F22 engine ... and i'm fairly certain anything V-8 needs premium.