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Survey on gas octane

Discussion in '5th Gen 4Runners (2010+)' started by PR48, Jan 21, 2019.

  1. Jan 24, 2019 at 12:35 PM
    #31
    Snow Packed

    Snow Packed New Member

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    87 always. It is not a sports car, so anything above 87 is wasteful.
    Jeep ruined their lineup by adding that 2.0 turbo to the JL wrangler mix.
     
    Last edited: Jan 24, 2019
    Snickel Fritz and 2016Pro like this.
  2. Jan 24, 2019 at 7:16 PM
    #32
    Snickel Fritz

    Snickel Fritz New Member

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    Top-Tier 87, Shell is the only TT in my area right now.
    I tried an experiment with all different grades I could find above it from New England to Texas, even ethanol-free premium from native-owned stations on a res in Oklahoma.
    The only grade better than TT 87 for economy and/or smooth acceleration was the 89 ethanol-free, which seemed to barely help with power... according to the butt-dyno.
    93 grade was not only a waste, I got worse economy and had to dump more fuel into the engine to keep up on the highway.
    Always TT gas, btw.
     
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  3. Jan 24, 2019 at 8:42 PM
    #33
    Backslider

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    91 in all my cars.

    A couple extra bucks each time I fill up is no big deal at all. I do feel and hear a difference with a high octane, top tier fuel.
     
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  4. Jan 25, 2019 at 6:28 AM
    #34
    Snow Packed

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    The oil cartels love people like you and so do their investors.
     
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  5. Jan 25, 2019 at 11:35 AM
    #35
    Backslider

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    I wont drink bourbon out of a plastic bottle either. Probably some liquor baron out there that loves me too.
     
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  6. Jan 25, 2019 at 12:23 PM
    #36
    Snow Packed

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    No worries. PT Barnum said it perfectly.
     
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  7. Jan 25, 2019 at 12:34 PM
    #37
    Backslider

    Backslider Gun Nerd

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    Yep, a douchebag opens his mouth every minute. Use those pennies you saved to buy some sense.
     
  8. Jan 25, 2019 at 2:01 PM
    #38
    Snow Packed

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    Morons abound. I know a self fulfilling prophesy when I see one. Let me guess... you are so tough you wipe your ass with dollar bills.
     
  9. Jan 25, 2019 at 2:18 PM
    #39
    Backslider

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    Why do you have to come in here and be a dick?

    I understand the science behind, and the benefits of using a high octane premium fuel. I chose to do so.

    There is always some little-man-syndrome POS who, with no facts to present, wants to assume some ill-percieved intellectual, or in this case, frugality superiority..

    You've expressed your opinion. I assure you my choice is based on results and not a few saved pennies.
     
  10. Jan 25, 2019 at 2:44 PM
    #40
    Ramrod88

    Ramrod88 Drives a 4Runner on a Corolla budget

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    I use V-power cause That red button looks cooler than the two yellow ones. Before i had the runner i had an 06 Taco with the 2.7 4 bang. Ran nothing but shell chevron or exxon 93 the whole 9 years of owning it. Now listen to this and I need your opinion. At around 130k the catylitic converter went to shit and while changing it out, my dad swears it was from me using nothing but 93 in a low compression engine and that was causing buildup from unburnt gas. Is he right about that? Im not sure he knew that it was a vvt
     
    Last edited: Jan 25, 2019
  11. Jan 25, 2019 at 2:47 PM
    #41
    Snow Packed

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    Yes, the system will adjust the timing to account for the octane difference. There is no benefit. If there was, it would be required.
     
  12. Jan 25, 2019 at 2:58 PM
    #42
    WallyT4R

    WallyT4R New Member

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    Your opinion of it "would be required" is simply not true. Let's give it a rest here. People should be able to spend their own money how they see fit. It's their money.
     
  13. Jan 25, 2019 at 3:57 PM
    #43
    SlvrSlug

    SlvrSlug New Member

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    And name calling is stupid.:poking:
     
  14. Jan 25, 2019 at 4:16 PM
    #44
    Backslider

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    Lower octane = earlier combustion = lower compression = less power.

    Yeah, your 4runner will run just fine on 87. I prefer to feed mine 91. I also use a really expensive (comparatively),high quality oil.

    I dont care what you choose to do, but accusing me of being a "sucker" and a "moron" when I absolutely understand the science behind it and CHOOSE to spend the extra $2 per fill up for a higher quality fuel is uncalled for. Even when you think you're being clever about it..

    I dont daily my 4runner. I take it on trails and overland and that's about it. My v6 Avalon XLE also gets 91, and there too I experience a noticeable improvement in performance - the engine runs smoother as well.

    You can believe what you want and sling all the insults in the world, but you post history proves to ke that you're just a crotchety dude who shouldn't be taken too seriously.

    Remember, I didnt try to convince anyone to run 91 or better, and I didnt ridicule anyone for choosing how to treat THEIR vehicle.
     
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  15. Jan 26, 2019 at 4:22 AM
    #45
    j cat

    j cat New Member

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    spacer lift front 1inch
    yes IMO dad is correct on 93 in a 4 banger. most vehicles designed for 87 will not have a PCM programed for 93 use .. so yes the 93 will leave some un burned fuel.
    ON some GM V8 engines PCM does have ability to change the fuel management with 91 .. 93 PCM does not have that ability. Toyota not sure if it can do it with 91..
    I did try 93 in runner and did 2 fuel tanks no change in MPG so why would I use extra $$$ for nothing gained ?
    Top tier fuels are with additives to keep the nasty alcohol from doing the damage in the fuel system for a period of time.
     
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  16. Jan 31, 2019 at 8:02 AM
    #46
    Crusifix

    Crusifix New Member

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    As long as the computer can adjust and throw enough spark advance at the combustion chamber, then you will get better performance and usually even better fuel mileage out of higher octane. Better mileage is based on you not utilizing your right foot like it has a rock attached to it. However, that extra bit of pep could mean the difference in when your transmission downshifts to compensate for load. Now, I don't know what the maximum tables look like for octane (knock detection threshold), but I would wager you will at least see a boost in performance with 91 octane. If it is able to add enough timing in spark, and possibly even with the cams to run 93 octane efficiently and with a clean burn, well even better.
     
  17. Jan 31, 2019 at 8:50 AM
    #47
    j cat

    j cat New Member

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    spacer lift front 1inch
    what tuner do you have or had the tune from ON YOUR TOYOTA ?
    family member has a diablo tuner for dodge/GM .. tuner can change anything .. can change so much it can blow up the engine..

    DIABLO TUNER NO TOYOTA !
     
  18. Jan 31, 2019 at 11:12 AM
    #48
    Crusifix

    Crusifix New Member

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    I don't have anything on my 4runner.
     
  19. Jan 31, 2019 at 12:31 PM
    #49
    j cat

    j cat New Member

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    spacer lift front 1inch
    many are looking for a performance tune .. less down shifting when going up hills on hywy @60-70MPH..also shift point change .
     
    Crusifix likes this.
  20. Feb 10, 2019 at 8:07 AM
    #50
    fsroader

    fsroader New Member

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    $0.20 difference between reg & hi-test? Lucky you. It's at least $0.75 per gal here. This is the 1st ride Ive owned in quite awhile that uses reg and I'm not complaining.
     
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  21. Feb 10, 2019 at 8:27 AM
    #51
    HoBoDanny

    HoBoDanny That Dude

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  22. Feb 10, 2019 at 9:58 AM
    #52
    golfguy

    golfguy New Member

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    OP should have added a poll. :notsure:
     
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  23. Feb 10, 2019 at 10:03 AM
    #53
    HoBoDanny

    HoBoDanny That Dude

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    Would help keep some of the bickering down.
     
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