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Which octane is everyone using

Discussion in '3rd Gen. Tacomas (2016+)' started by yoda16, May 29, 2016.

  1. Oct 6, 2021 at 9:10 AM
    #221
    overlandozzy1

    overlandozzy1 Well-Known Member

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    93, running the OV Premium Tune with 5.29 Gears, and 35s, full skids, a HC rear bumper, and a prinsu rack and still getting 17.5-18 mpg on the highway....the OV tune is worth its weight in gold if you ask me.
     
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  2. Oct 6, 2021 at 9:10 AM
    #222
    coopcooper

    coopcooper certified youtube mechanic

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    4.0? cause my 02 ranger also ran like battered shit on anything higher than 87 lol.
     
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  3. Oct 6, 2021 at 9:11 AM
    #223
    Junkhead

    Junkhead TRDude

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    Yes sir, 4.0. Miss that truck man, wish I could’ve kept it… Very reliable and capable truck.
     
  4. Oct 6, 2021 at 9:59 AM
    #224
    betrayus

    betrayus Milk steak connoisseur

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    85 here in Colorado, no issues. If I go to lower elevation, or towing long distance, I'll switch to 87. With a naturally aspirated, non-turbo'd, non-tuned, V6... i'm not wasting the money for above 85 at this elevation.
     
    Last edited: Oct 6, 2021
  5. Oct 6, 2021 at 10:31 AM
    #225
    DanoTay

    DanoTay Well-Known Member

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    My '93 MR2 turbo requires premium fuel. With 91octane it would sometimes initially stumble when mashing the throttle but with 94 octane there is zero hesitation or stumble and a slight increase in mpg and it is enough to cover the additional cost of 94octane gas.

    With a modern day more complex 3.5V6 I figure there is likely a less dramatic difference between regular and premium gas, however since I am keeping my Tacoma long term, using 94octane ethanol free premium gas is the plan.
     
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  6. Oct 6, 2021 at 10:32 AM
    #226
    Jay745

    Jay745 My racecar is a vw

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    I can't wrap my head around some of the comments saying it ran worse with premium over 87. Makes no sense to me
     
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  7. Oct 6, 2021 at 10:32 AM
    #227
    TheRealMateo

    TheRealMateo @KingdomTaco

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  8. Oct 6, 2021 at 10:46 AM
    #228
    R4D4G4ST

    R4D4G4ST Well-Known Member

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    Yeah, it makes no sense at all. It just proves that seat-of-the-pants dyno's only reinforce the drivers initial bias.
     
  9. Oct 6, 2021 at 10:51 AM
    #229
    B1gDaddyT

    B1gDaddyT Well-Known Member

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    I think it totally depends on elevation. I live at 4500 feet and I always run non-ethanol in my vehicles. I switched to premium (91 octane) at the start of the summer hoping to do better on mpgs. I ran 6 tanks of premium and averaged between 18.8-20.2 - I don't have a lead foot and try to drive fuel consciously. I switched back to 87 non-ethanol and have run 3 tanks since. I now average 21.5-22. I drive about 60/40 city for reference. I think if I was in a lower elevation, the results would be switched and maybe even better on higher octane.
     
  10. Oct 6, 2021 at 11:42 AM
    #230
    badhand2

    badhand2 Well-Known Member

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    87 octane works fine.
     
  11. Oct 6, 2021 at 11:52 AM
    #231
    cryptolyme

    cryptolyme Well-Known Member

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    91 octane
    i get all the gear hunting when i fill up with 87. goes away with premium.
     
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  12. Oct 6, 2021 at 12:09 PM
    #232
    R4D4G4ST

    R4D4G4ST Well-Known Member

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    Yeah, this is because of E0. Not octane. I live at the same(ish) elevation and I've noticed the same thing with E0. E0 has more energy per gallon.
     
  13. Oct 6, 2021 at 12:11 PM
    #233
    Thomas Jefferson

    Thomas Jefferson Keyboard Warrior

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    One can never have too many light bars.
    87. It's not a Ferrari.
     
  14. Oct 6, 2021 at 12:12 PM
    #234
    Junkhead

    Junkhead TRDude

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    It’s a Lexus engine that originally was tuned to 91.:notsure:

    1GR FE also benefits from higher octane fuel.
     
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  15. Oct 6, 2021 at 12:15 PM
    #235
    R4D4G4ST

    R4D4G4ST Well-Known Member

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    Yeah, my 1GR did noticeably better on premium.
     
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  16. Oct 6, 2021 at 12:16 PM
    #236
    DAS Taco

    DAS Taco Well-Known Member

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    I want the most out of my engine so I go for ethanol free gasoline rather than worry about octane...
     
  17. Oct 6, 2021 at 12:17 PM
    #237
    B1gDaddyT

    B1gDaddyT Well-Known Member

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    91 octane was E0 as well. Better mpgs with 87 E0 vs 91 E0.
     
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  18. Oct 6, 2021 at 12:17 PM
    #238
    Junkhead

    Junkhead TRDude

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    Yep. Also, there are different power ratings between 87 and 91 in certain models, such as FJs, 4runners and 2nd gen Tacoma’s.
     
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  19. Oct 6, 2021 at 12:18 PM
    #239
    R4D4G4ST

    R4D4G4ST Well-Known Member

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    Thats interesting. My local only has E0 89, so thats the basis of my experience.
     
  20. Oct 6, 2021 at 12:19 PM
    #240
    Slick Taco

    Slick Taco Married + No Kids = More Toys For Me

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    Tundra gets 87
    Rav4 gets 87
    Tacoma get 93 per KD Maxx tune
     

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