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23 MPG from '99 3.4 V6 with 169k miles...really?

Discussion in '1st Gen. Tacomas (1995-2004)' started by Thor, Jun 1, 2009.

  1. Jun 1, 2009 at 6:28 PM
    #1
    Thor

    Thor [OP] Active Member

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    So my new 1999 rust buggy with the 3.4 V6 and manual tranny and 169k miles is getting around 23mpg. That seems really high for a vehicle this old with this many miles. But I've filled it up twice and checked it carefully both times. First was 23.4 and second was 22.5. Looks like this model with these specs was rated around 18 mpg hwy when it came out. What gives? Not complaining...just bewildered.
     
  2. Jun 1, 2009 at 6:37 PM
    #2
    humanoid

    humanoid bite me

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    Do you have a lift? Any mods to your truck? What kind of driving do you do?
     
  3. Jun 1, 2009 at 6:40 PM
    #3
    oldtacomaguy

    oldtacomaguy four forty four

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    Yup, I was getting that mileage with my 97 with 175000 on it. Just great engines.
     
  4. Jun 1, 2009 at 7:04 PM
    #4
    Thor

    Thor [OP] Active Member

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    No lift or mods. I drive 90+% highway miles. Round trip for work everyday is 110 miles.
     
  5. Jun 1, 2009 at 9:52 PM
    #5
    TRD4x4858

    TRD4x4858 Taco Traitor!

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    BONE STOCK! lol
    what size tires are you running?
     
  6. Jun 1, 2009 at 10:01 PM
    #6
    humanoid

    humanoid bite me

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    Hmmmmm, 23 does sound kind of high. The most I could ever squeeze out of my '99 was 20. :(
     
  7. Jun 2, 2009 at 5:49 AM
    #7
    ARB1977

    ARB1977 Don't be a dick

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    Thats pretty damn good. Milage has nothing to do with it. When my truck was stock other than a lid, deckplate mod and a magnaflow muffler i was getting 23 mpg. Now that its lifted, oversized tires, sliders and no lid im getting 20-21 mpg...mind you i have an auto.
     
  8. Jun 2, 2009 at 5:49 AM
    #8
    Thor

    Thor [OP] Active Member

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    The truck isn't nearby at the moment, but I'm almost sure they're 235-75R-15.
     
  9. Jun 2, 2009 at 5:51 AM
    #9
    Thor

    Thor [OP] Active Member

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    I'll be filling up again tomorrow, and I check the mileage on every fill-up. If this third tank turns out to be in the same mpg range, I'll know that I've just got a nicely tuned, well-running, high mileage machine. :)
     
  10. Jun 2, 2009 at 9:14 PM
    #10
    TRD4x4858

    TRD4x4858 Taco Traitor!

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    BONE STOCK! lol

    That will definately help out the mileage!! those are small tires :D
     
  11. Jun 3, 2009 at 4:41 AM
    #11
    EnolaGaia

    EnolaGaia Well-Known Member

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    There's no significant variance from stock tire (225/75/15) diameter (28.9" versus 28.3"). This would account for about a 2% increase in apparent mileage due to odometer error, but that doesn't explain a jump all the way to 23 mpg.
     
  12. Jun 3, 2009 at 2:57 PM
    #12
    Thor

    Thor [OP] Active Member

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    Well I guess it is legit. Third tank was 22.8 mpg. Looks like I've got a winner. Now, about that rust...
     
  13. Jun 3, 2009 at 4:24 PM
    #13
    22b22

    22b22 Well-Known Member

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    Maybe it's the lightened frame that reduced the weight to get that kind of mileage :cool:
     
  14. Jun 3, 2009 at 4:28 PM
    #14
    Thor

    Thor [OP] Active Member

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    Perhaps, but wouldn't the dangling pieces of rust increase the coefficient of drag?
     
  15. Jun 3, 2009 at 4:38 PM
    #15
    22b22

    22b22 Well-Known Member

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    Only until they fall off... then it's all about power to weight ratio :D
     
  16. Jun 3, 2009 at 4:45 PM
    #16
    Thor

    Thor [OP] Active Member

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    Guess that means I have to cut down on the Whoppers and Burger Shots from Burger King.
     
  17. Jun 3, 2009 at 6:49 PM
    #17
    EnolaGaia

    EnolaGaia Well-Known Member

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    As the metal rusts away there's less and less 'drag' from the earth's magnetic field ... :devil:
     
  18. Jun 3, 2009 at 7:16 PM
    #18
    Thor

    Thor [OP] Active Member

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    Yes, but the pits, pockets, and holes left behind create additional drag. That's probably a good 2.5% reduction right there...in fuel economy, not body mass.
     
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