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  • #31
    Re: Gas Grade???

    It's the compression that detremines which Octane. A higher grade octane gives no benefit in milage or power, it's just the point at which it will combust on compression. Higher octane can cause buildup from incomplete combustion. This then requires the further use of the higher octane to prevent ping/knocking. Therefore, is over the years you used higher octane, then as the engine gets older, then you wuold need higher octane. Same if you had problems with buildup from some other reason.
    And even Chevron says you're wrong:

    Chevron Supreme with Techron® can maximize performance in cars designed to use high octane gasoline. High octane Chevron Supreme can give these cars faster acceleration or quieter performance than lower octane gasolines.
    Note it specifically says "cars designed to use high octane gas". Because they'd be sued for false advertising if they didn't.

    Using gasoline with an antiknock rating higher than that required to prevent knock or to prevent spark retardation by the knock sensor will not improve a vehicle's performance.
    From Chevron - at the bottom. Note: they even had to put it in bold.

    http://www.chevron.com/prodserv/fuel...rmance/pg3.asp

    If you noticed a benefit, that means you have other problems, and using the higher octane just masks it. So if you're already using supreme and it gets worse what do you do?

    Look, if you want to keep using it because it makes you feel better, or your butt dyno swears you gain 20 hp, go ahead. But at least try and back it up with some shred of evidence if you're going to post it as advice to someone else. Especially someone with a newer car where you might actually make things worse. You're a car enthusiast and should have some responsibility to accuracy.

    Remember, it's assholes like me who question and research marketing BS and snake-oil stuff like the turbonator/prolong rather than "living a little", etc so you don't fall sucker to them. And there's a difference between being passionate about something and ranting.

    Khyron
    Geoff
    Fear is the element that unites all losers.

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    • #32
      Re: Gas Grade???

      Perhaps thats chevrons cop out phrase, so that not every redneck with his chevy pickup can say "yer dem der gasoleeene dun't make any durn'd better in muh truck".....If chevron claimed to increase performance with "high perfomance" gasoline, they would have to stick behind it.....And no, I'm sure not every vehicle would experience a difference, myself and others have, you don't know till ya try!!
      2006 Colorado Xtreme | AEM CAI | Walker exhaust | smoked glass | -1" dropped rear | Avic D3 | 8000K HID's
      2002 GTI 1.8t | C1 SS | Upsolute 94 oct | Brullen 2.5" DP | Supersprint catback | Poly mounts | 19" Privat's | FK 55 kit | Projector lights | EVOMS CAI
      2000 GSXR750 | Hindle Race exhaust | Telefonica replica | K&N intake | Custom ECU

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      • #33
        Re: Gas Grade???

        Quote:
        ...prevent spark retardation....

        Too late, after reading all three pages, It already happened.

        Edit: Daelen, please still come to a meet after this, we're not all crazy, and we promise not to talk about fuel, right?
        Last edited by Tuna; 02-27-2005, 02:18 PM.
        Jay

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