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  1. 05-13-2008, 11:14 AM #1
    Joe Cool's Avatar
    Joe Cool
    Joe Cool is offline It's not what you drive... wait, it is!
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    Different Octane Ratings

    The Octane ratings for Canadian gasoline for Regular, midgrade, and Supreme are 87,89, and 91 respectfully.
    I understand that the US ratings are 89,91,93. Is this actually the same fuel?

    So if I installing a Diablo tune on my LX and I use Supreme, do I use the 93 tune or the 91?

    Joe

    2006 Chrysler 300C SRT8 w/ Predator, AirHammer, TZ Grille, AAC 8000K Halos & HID Fogs, Billet oil catch can, MB shifter paddles, Mygig w/ front and rear cameras, Illuminated rear wing and brake light badge, Mopar/Corsa Cat back polished exhaust, SLP Line Lock, 180 T-Stat, DMH Electric Cutouts.

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  2. 05-13-2008, 11:26 AM #2
    diablotoona's Avatar
    diablotoona
    diablotoona is offline NOOB....
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    Pretty sure they use the same ratings, for 91 octane use the 91 tune.
    Johan <at> diablosport.com
    DiabloSport R&D

    Only two things are infinite, the universe and human stupidity, I am not sure about the former.
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  3. 05-13-2008, 11:46 AM #3
    Joe Cool's Avatar
    Joe Cool
    Joe Cool is offline It's not what you drive... wait, it is!
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    Thanks.
    I'll install a tune once it stops raining and I can find a dry piece of pavement to sign.

    Joe
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