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Toyota Speaks on Gas!

Discussion in '2nd Gen. Tacomas (2005-2015)' started by tacoskim, Oct 16, 2008.

  1. Oct 16, 2008 at 3:05 PM
    #1
    tacoskim

    tacoskim [OP] Tuned By Gadget

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    so i was talking to my service guy yesterday and told him bout our huge debate on which gasoline the 4.0 desires. he said premium is the way to go for these types of engines.
     
  2. Oct 16, 2008 at 3:09 PM
    #2
    NumNutz

    NumNutz One of the original 7928

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    Oh great the guy can read the manual... I don't have much respect for the service guys:rolleyes:

    Besides the mpg jump I had (about 4 mpg) for using 89 instead of 83 I'm not gonna be using premium.
     
  3. Oct 16, 2008 at 3:10 PM
    #3
    jrw1965

    jrw1965 Well-Known Member

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    The book says 87. Did he give you a reference
     
  4. Oct 16, 2008 at 3:10 PM
    #4
    tacoskim

    tacoskim [OP] Tuned By Gadget

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    yea well if u have a good relationship with ur service guy youll be surprised on how much money they can save u by giving u their discounts. my service guy is ok in my book
     
  5. Oct 16, 2008 at 3:14 PM
    #5
    tacoskim

    tacoskim [OP] Tuned By Gadget

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    he said on the 4 banger 87 will run fine, but for the 4.0 premium is the right way to go
     
  6. Oct 16, 2008 at 3:18 PM
    #6
    Toyhauler

    Toyhauler Well-Known Member

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    ehhhh i ran 91 before and gas mileage still sucked, a little bit more power but 87 will do.
     
  7. Oct 16, 2008 at 3:20 PM
    #7
    tacoskim

    tacoskim [OP] Tuned By Gadget

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    the idling is alot smoother with premium. same with acceleration, also not much of a ticking with 91
     
  8. Oct 16, 2008 at 4:37 PM
    #8
    Evil Monkey

    Evil Monkey There's an evil monkey in my truck

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    Well, it's not exactly "Toyota" speaking out on gas. It's your service rep. There are service reps who say the suspension is fine even though there is a TSB out on it. Mine runs fine on 87 (not ethanol). I was running mid-grade when I first bought it but tried regular. No difference in mileage on mine (unless your truck runs crappy on regular, you won't see a boost in mileage). Our truck is right at the threshold for going to premium (10:1 compression). Premium is recommended for any vehicle with over 10:1 compression. If your truck isn't knocking when you hit the accelerator (sign of preignition), going any higher is just a waste of money.

    You might see a mileage difference if your regular gas is ethanol.
     
  9. Oct 16, 2008 at 4:40 PM
    #9
    pittim

    pittim mittip

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    Pink slider.
    How about with the 3.4's?
     
  10. Oct 16, 2008 at 4:41 PM
    #10
    tacoskim

    tacoskim [OP] Tuned By Gadget

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    thanks for the compression info. sorry should of clarified my self more when i said "toyota" speaks bout gas
     
  11. Oct 16, 2008 at 4:42 PM
    #11
    tacoskim

    tacoskim [OP] Tuned By Gadget

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    3.4 are perfectly fine with regular
     
  12. Oct 16, 2008 at 4:42 PM
    #12
    jrw1965

    jrw1965 Well-Known Member

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    What He Said
     
  13. Oct 16, 2008 at 4:45 PM
    #13
    trtripoli

    trtripoli lower management

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    Tacomas have VVT (variable valve timing). Which means that the truck will change the timing in which gas is let into the cylinder as well as change the timing in which the spark plug fires. Tacomas will never knock, but you may see a difference in gas milage based what type of gas you put in.

    I'm trying premium for the first time, hopefully my gas milage goes up.
     
  14. Oct 16, 2008 at 5:27 PM
    #14
    allrsdup

    allrsdup Well-Known Member

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    thank u i have been saying this forever.
     
  15. Oct 16, 2008 at 5:30 PM
    #15
    allrsdup

    allrsdup Well-Known Member

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    and yes they will nock mine pings like crazy if i run 87
     
  16. Oct 16, 2008 at 5:31 PM
    #16
    derekabraham

    derekabraham Living vicariously through everybody

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    My tick is so loud! :(



    87 is the only thing that fits in my budget though. :eek:
     
  17. Oct 16, 2008 at 5:36 PM
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    Evil Monkey

    Evil Monkey There's an evil monkey in my truck

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    No difference in mine.
     
  18. Oct 16, 2008 at 6:02 PM
    #18
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Toyotas will have knock. Not to the point of destruction, but they will have some.
     
  19. Oct 17, 2008 at 4:50 AM
    #19
    flavalk

    flavalk 2-Broke 2-Care

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  20. Oct 17, 2008 at 6:06 AM
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    Shark

    Shark Nobody's Hero

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    My FJ Cruiser had the exact same engine and the owner’s manual required 91 octane. Some FJ owners used 87 octane and reported no issues. Others noticed a benefit from using premium fuel.

    I worked for years at my father’s gas station and after testing various fuels have come to the conclusion that premium fuel is worth the extra .20 a gallon. I have seen a slight increase in MPG, reduction of pinging and an overall increase in engine smoothness. Is it necessary? Probably not, but if I drive 15K, per year and average 17 MPG, it amounts to $176 a year to use premium fuel (if it is 20 cents more a gallon). IMO, it’s certainly worth it. Others have not noticed any measurable benefits and there may be many reasons for this……different types of gas (summer and winter blends), each state has different standards, individual vehicle operation, ect. At the end of the day, there is no right or wrong......to each their own.
     
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