well this mornight after getting lost...I stopped at a gas station and filled up and right when I was all done I saw it was 87 octane durrrr....I had a 2-3 bars left of 93 octane....is this gonna mess up my sht?
thanks!

 

Yeah you'll probably explode =P

Just put in the real stuff next time

 

You'll probably just feel a slight loss in power, don't bother trying to go into the high revs on the 87 octane. Just burn through it and fill up with 91 next time

 

93 in NY ....yaaa I havent brought it over 3500-4ish rpm....booo im dumb

 

get some octane booster from autozone...hahha

 

The ECU will compensate for the lower octane. Don't be afraid to beat on it .

 

yeah just put some octane booster in it. my car loves it.

 

not a big deal if you do it once
but try not to do it often though

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aco512 &raquo;</TD></TR><TR><TD CLASS="quote">not a big deal if you do it once
but try not to do it often though</TD></TR></TABLE>

+1

it'll be fine, like others said just a little loss of performance. your ecu will compensate for it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by moonface &raquo;</TD></TR><TR><TD CLASS="quote">yeah just put some octane booster in it. my car loves it.</TD></TR></TABLE>

hahahaha. that **** doesnt do anything to your car...hahahahaha. sig'd.

 

Your car came with 87 octane gas.

to cheap dealerships

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stein &raquo;</TD></TR><TR><TD CLASS="quote">The ECU will compensate for the lower octane. Don't be afraid to beat on it .</TD></TR></TABLE>



Just to be safe I wouldn't rev the **** out of it, but honestly, modern ECUs are really damn smart and on an NA vehicle (even one with as high a CR as the Si) it isn't really that huge a deal. Dealerships RARELY put 93 in anything, hell, my old '05 STi knocked like crazy initially from the dealership and I found out they put 87 in it.

Jon

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by originalg00kster &raquo;</TD></TR><TR><TD CLASS="quote">

hahahaha. that **** doesnt do anything to your car...hahahahaha. sig'd.</TD></TR></TABLE>

I love how people always recommend products to other people just because it doesn't harm their car... but it doesn't help either.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaF1Fanatic &raquo;</TD></TR><TR><TD CLASS="quote">



Just to be safe I wouldn't rev the **** out of it, but honestly, modern ECUs are really damn smart and on an NA vehicle (even one with as high a CR as the Si) it isn't really that huge a deal. Dealerships RARELY put 93 in anything, hell, my old '05 STi knocked like crazy initially from the dealership and I found out they put 87 in it.

Jon

</TD></TR></TABLE>stealerships ftl

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SacrificeTheory &raquo;</TD></TR><TR><TD CLASS="quote">Your car came with 87 octane gas.

to cheap dealerships </TD></TR></TABLE>
nope 93.......my boy did it up and they do all si's and s2k's with 93....I used to be the lot guy they told me to do that aswell...I personally filled some with 93 octane

 

You might be able to buy some of that STP octane booster to help ease your mind. Not sure how effective it is but hey, worth a shot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by japspecjohn &raquo;</TD></TR><TR><TD CLASS="quote">
nope 93.......my boy did it up and they do all si's and s2k's with 93....I used to be the lot guy they told me to do that aswell...I personally filled some with 93 octane</TD></TR></TABLE>

You worked for a good dealership then, I know for a fact that ones by me use 87 on everything.

 

Dont feel bad I did the same thing to mine, I only put 5 gallons in. I could tell a differance and my exhaust smelt like rotton eggs

 

believe it or not mine is stinkin........o well im just goin easy on it managed to shove another 1.5 gallons of 93 in her this morning

 

I did the same thing. I was on E awhile back and i filled it all the way with 87!~ I was pissed. Belive it or not i only got 200 miles out of that tank..

 

i used to put 87 in my gsr motor all day long, ran mint all the way to 8k rpm

but ive got a couple gallons of 117 octane if you want it

 

Go to Sunoco and fill up on their 95+

 

Or go to unocal 76, some stations offer 115 octane.

 

Make sure the high octane fuel you run isn't leaded, if you run leaded gas in your car it will ruin the catalytic converter. If you have gotten rid of the cat, the lead will just make your O2 sensor die a bit faster, but I still wouldn't recommend it unless you are boosted. Sunoco is the only gas station gas I can think of that offers 95+ octane from the pump (they have 100 octane unleaded by me).

Jon

 

92 here in hawaii ..... but ur best bet is to put some octane booster or injecter cleaner your car will love it it will thank you!