Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

100 octaine

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Old Aug 4, 2006 | 01:55 PM
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B16b-EJ8's Avatar
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Default 100 octaine

Any problems with running 100 octaine in my car daily driven...should i use a mixture half 100 and half 91 or would it matter? I found a gas station near my house that has 100 octaine and wanted to know
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Old Aug 4, 2006 | 01:56 PM
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Default Re: 100 octaine (Stroked B16b-EJ8)

What does your mod list look like? Compression Ratios, boosted, all motor???
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Old Aug 4, 2006 | 01:57 PM
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Default Re: 100 octaine (Red_EM2)

Stroked B16b stock header, greddy exhaust AEM intake
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Old Aug 4, 2006 | 02:01 PM
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Default Re: 100 octaine (Stroked B16b-EJ8)

Do you know what 100 octane gas does?

Hint: It doesn't add 15 WHP.
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Old Aug 4, 2006 | 02:02 PM
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Default Re: 100 octaine (Stroked B16b-EJ8)

Are you still running with a stock head and pistons?

If so, then 100 is overkill IMO. If youre still on a stock compression, then you really dont need anything more than 89 or 91.
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Old Aug 4, 2006 | 02:09 PM
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I think you are misunderstanding...i didnt want it as performance gain or anything...just thought it might be a treat for the car everyonce in a while...kind of like octaine boost only better
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Old Aug 4, 2006 | 02:12 PM
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Default Re: (Stroked B16b-EJ8)

Better octane fuel does nothing. Only increases the amount of compression the cylinder can have before detonation. You, with your setup, dont really need it unless you go FI, or a high compression N/A setup.

Modern fuels have detergents in them to clean out the fuel system, and thats really all you need from time to time. Nothing special.
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Old Aug 4, 2006 | 02:14 PM
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K...i was just wondering if it would hurt anything. No harm in asking but thanks for the info. after i purchase my turbo setup then would be a godd time for 100 octaine?
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Old Aug 4, 2006 | 02:16 PM
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Default Re: (Stroked B16b-EJ8)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stroked B16b-EJ8 &raquo;</TD></TR><TR><TD CLASS="quote">after i purchase my turbo setup then would be a godd time for 100 octaine?</TD></TR></TABLE>

It really depends on how much boost you plan on running. 5-8 psi wouldnt hurt to bump to 91 or 93. Once you start getting into the teens and on up to 19-20 lbs, then yeah, it would nearly be a requirement.
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Old Aug 4, 2006 | 02:33 PM
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octane ratings are just a measure basically of how hard the fuel is to completely combust. more ignition resistant fuel = better defense against detonation. adding oil to your gas will raise the octane rating.... not particularly ina good way but still..

it wont HURT your car but its a waste of money. 91 is fine... just use 91 and paypal me the difference same thing as buying 100
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Old Aug 4, 2006 | 02:36 PM
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Thanks for the info guys.
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Old Aug 4, 2006 | 07:06 PM
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Default Re: (claytonsmith)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by claytonsmith &raquo;</TD></TR><TR><TD CLASS="quote"> adding oil to your gas will raise the octane rating.... not particularly ina good way but still..
</TD></TR></TABLE>

Say huh?

Can somebody confirm this? I have never heard of ANYBODY doing this?
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Old Aug 4, 2006 | 07:09 PM
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Default Re: (Red_EM2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by claytonsmith &raquo;</TD></TR><TR><TD CLASS="quote">adding oil to your gas will raise the octane rating.... </TD></TR></TABLE>

LOL at the rate my VX burns oil i can have 20:1 compression and not detonate
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Old Aug 4, 2006 | 07:13 PM
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Default Re: (Sleepy_Red_hatch)

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

LOL at the rate my VX burns oil i can have 20:1 compression and not detonate </TD></TR></TABLE>

lmao
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Old Aug 4, 2006 | 07:26 PM
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Default Re: 100 octaine (Stroked B16b-EJ8)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stroked B16b-EJ8 &raquo;</TD></TR><TR><TD CLASS="quote">Any problems with running 100 octaine in my car daily driven...should i use a mixture half 100 and half 91 or would it matter? I found a gas station near my house that has 100 octaine and wanted to know</TD></TR></TABLE>

Not only is it a bit of overkill...whats the price per gallon? If its significantly higher than premium goes for in your town its a waste of money too.

And for the record, surely you figured it out by now but its "Octane". At least you didnt spell brakes "Breaks"...that **** really chaps my ***.


But yeah...definetly interested in the price. Ive seen nothing above 93 in NJ.
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Old Aug 4, 2006 | 08:15 PM
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Default Re: (Red_EM2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Red_EM2 &raquo;</TD></TR><TR><TD CLASS="quote">Say huh?

Can somebody confirm this? I have never heard of ANYBODY doing this?</TD></TR></TABLE>


He is wrong. "Octane" is a molecule. The only way to "raise it" (increase the percentage of it in the mixture) is to add more of it or subtract non-octane molecules. Oil is not octane.

That was quite possibly one of the most retarded suggestions I've read on HT.
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Old Aug 4, 2006 | 08:17 PM
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Default Re: (ZeeSix)

Yeah, I knew that didnt sound right.

Oh well, I guess I might be more gullable sometimes than I thought.
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Old Aug 4, 2006 | 08:30 PM
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Default Re: (Red_EM2)

add acetone too your gas for bettrer gas mileage
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Old Aug 4, 2006 | 08:42 PM
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Default Re: (PEARLelectron)

If your not tuned for it dont waste your money on it. Especially at the pump, its like $10 a gallon for F&L and about 11$ for VP (55 dollars for 5 gallons)
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Old Aug 4, 2006 | 09:19 PM
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Default Re: (Luserkid)

Tell me if I'm wrong, but if your car is programmed to run on 91 octane, 100 octane is going to not work as effeciently for you car. Right? I mean the figure that out when they make the car. Just like you probably dont want to run 85 octane.?
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Old Aug 4, 2006 | 09:28 PM
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Default Re: (GSP)

when cars are tuned there tunned on the gas they plan on running like a track car will be tuned on race gas 100+ octane yours is a street drivin car for everyday use u want to run 91-93 what ever u have there that should be what that motor needs running 100 will slow u down because thats not what your tune is for?? u understand that i said that all messed up
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Old Aug 4, 2006 | 09:30 PM
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if anything, it would make your car run worse. higher octane is harder to burn
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Old Aug 4, 2006 | 09:34 PM
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Default Re: (jerbear!)

yes!! exactly
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Old Aug 4, 2006 | 09:45 PM
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Default Re: 100 octaine (I Shot 50 Cent)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I Shot 50 Cent &raquo;</TD></TR><TR><TD CLASS="quote">Ive seen nothing above 93 in NJ. </TD></TR></TABLE>
you can drive an hour to Englishtown for (I think) 120 octane gas.

I agree with jerbear!, if it changes the car's performance in any way, it'll be for the worse. Your wallet will especially hate you for buying it.
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Old Aug 5, 2006 | 12:24 AM
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Default

my cousin mixed 100 with 91 to get 95 and he noticed the revs went up a lot quicker(s2k)
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