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87 Octane in a 2007 Honda Civic Si?

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  • 87 Octane in a 2007 Honda Civic Si?


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Answer #1 | 19/12 2013 21:49
Octane does not facture into the reving of the motor, its a factor for higher compression motors. If it tells you it needs a higher octane level, then that needs to be followed. Since you do not know much about cars, you should understand that just because your gages say 8k rpm doesn't mean it will reach that or that its good to. You should see a red line begin under a number on you TAC. That is where the motor will start to take on damage, you don't want to run a car into that red line. So no, it is not a problem to you if you can't get your car to 8k rpms.
Positive: 62 %
Answer #2 | 20/12 2013 07:55
Sell your car while you still can and in good shape before you need to replace the engine and ask your daddy to build this car instead: It'll last longer https://www.youtube.com/channel/UCnMsph09IBdXpBtwVOy Uecw
Positive: 56 %
Answer #3 | 20/12 2013 22:04
Well your redline starts at 8k and the fuel cutoff is at 8200. It should be capable of revving past 7k RPM. This does indicate some kind of problem. Is this a stock SI or is it modded, if it is, what mods are on it? Secondly, Honda is very specific in the manual about using 91 octane gasoline, that's about a $3-$4 difference each fill up if you use the correct grade. If that small difference makes that much of an impact maybe you should find a cheaper car.
Positive: 36 %

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