What octane?

Discussion in 'Dodge Challenger General Discussions' started by Josh, May 17, 2018.

  1. May 17, 2018 at 5:13 PM #1
    Josh

    Josh Active Member

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    I'm just curious what fuel you guys with the TA 392 run octane wise? What does Dodge say to put in them?
     
  2. May 17, 2018 at 9:05 PM #2
    Wizard of Iz

    Wizard of Iz Full Access Member

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    The 392 calls for Premium --- at least 91 octane.

    I usually use either Shell or BP --- or another Top Tier gasoline.
     
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  3. May 18, 2018 at 11:07 AM #3
    Josh

    Josh Active Member

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    Thanks bud. Im getting one soon and figured it would need high octane but just wanted to be sure before I started giving it the good stuff. Lol
     
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  4. May 18, 2018 at 2:51 PM #4
    IntimidatorRT

    IntimidatorRT Well-Known Member Staff Member Super Moderator

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    hell, I run 93 in my 5.7, I also have a trinity tuner for mine. been dyno'd at 340 RWHP. JBA shorty headers and solo performance exhaust.
     
  5. May 21, 2018 at 10:09 AM #5
    Christianjax

    Christianjax Active Member

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    I use Sunoco premium 93. Ive noticed excellent performance but most of all the tankful last longer with the quality gas. Worth going out of your way to find it.
     
  6. May 23, 2018 at 2:43 AM #6
    IntimidatorRT

    IntimidatorRT Well-Known Member Staff Member Super Moderator

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    I have only seen one Sonoco gas station in Louisiana. and that is in Lake Charles. 50 miles from me.
     
  7. May 23, 2018 at 9:05 AM #7
    ZEN357

    ZEN357 Full Access Member

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    I have a 5.7 Hemi and I run 93 Octane.
     
  8. May 23, 2018 at 10:30 AM #8
    2009 Classic B5

    2009 Classic B5 Full Access Member

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    I use 87 octane in Denver area due to the altitude. I have used 85 octane and the Diablosport fuel economy tune for long trips through the mountains and got exactly the same FE as with higher octane fuels. In Denver area, Mid Grade is usually 30 cents higher than Regular and Premium (usually 89 octane) is 60-70 cents higher. I avoid using premium unless doing performance driving. What is hard to understand is that just across the border in Utah, Mid and Premium are only 10 and 20 cents higher, so I bump up to the higher octane when the cost is low.
    I have never noticed any meaningful difference in performance running 85 octane in normal driving with my '09 5.7L 6sp. And I barely notice any change using different Diablosport tunes either, even at the strip. Thoughts?
     
  9. May 28, 2018 at 11:23 AM #9
    Josh

    Josh Active Member

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    Its no where near out of my way. Theres one 3/4 of a mile from my house. I go there all the time. I run the Ultra 93 in my Hayabusa and love it.