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Gas mileage!

Discussion in '1st Gen. Tacomas (1995-2004)' started by joeyhunter, Apr 9, 2014.

Page 10 of 10
  1. Jun 6, 2014 at 2:24 PM
    #181
    smmarine

    #181
    smmarine Well-Known Member

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    Just put in octane or fuel into the search bar. You'll have reading for days. If you look in your owners manual, it should say the recommended fuel for the 4.0 is 91 octane. The 4.0 is designed to run the best at 91-93 octane. The ECU will detune when it senses knock, meaning retard spark timing and fuel curves, to run 87. I've read a lot of people hearing knock on here cause they run 87 octane. Seems like very few people know the 4.0 wasn't meant for 87 octane
     
    smmarine, Jun 6, 2014
    #181
  2. Jun 6, 2014 at 10:05 PM
    #182
    Yota64

    #182
    Yota64 Professional Threadjacker

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    I know, I stated that somewhere earlier in here, or maybe it was a different thread. I will search that now. Thanks again!
     
    Yota64, Jun 6, 2014
    #182
  3. Jun 8, 2014 at 7:19 AM
    #183
    NOLA ItsNotOva

    #183
    NOLA ItsNotOva Well-Known Member

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    Right now on my trip computer, I have 176.7 miles and its in the middle between half a tank and quarter of a tank. I know I need an o2 sensor, but would it affect my gas mileage that much?
     
    NOLA ItsNotOva, Jun 8, 2014
    #183
  4. Jun 8, 2014 at 8:09 AM
    #184
    Robb235

    #184
    Robb235 Well-Known Member

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    Yes. A bad O2 sensor will KILL your gas mileage.
     
    Robb235, Jun 8, 2014
    #184
  5. Jun 8, 2014 at 8:13 AM
    #185
    NOLA ItsNotOva

    #185
    NOLA ItsNotOva Well-Known Member

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    Well, I just replaced the MAF because that was bad. And I didn't see the o2 code until I cleared the MAF code. So, since these two kind of work together, would that mess up my MAF sensor?
     
    NOLA ItsNotOva, Jun 8, 2014
    #185
  6. Jun 8, 2014 at 8:46 AM
    #186
    smmarine

    #186
    smmarine Well-Known Member

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    That's about the mileage I get haha
     
    smmarine, Jun 8, 2014
    #186
  7. Jun 8, 2014 at 8:49 AM
    #187
    Yota64

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    Yota64 Professional Threadjacker

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    ...How do you know when our o2/MAF are bad? And can you get better ones for better mileage?
     
    Yota64, Jun 8, 2014
    #187
  8. Jun 8, 2014 at 8:53 AM
    #188
    smmarine

    #188
    smmarine Well-Known Member

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    A code will pop up if they go bad. Or you will see symptoms of them failing. All the will do is measure what they are designed for, and send the data to the computer. So no a different brand won't make better mpg
     
    smmarine, Jun 8, 2014
    #188
  9. Jun 8, 2014 at 10:32 AM
    #189
    Yota64

    #189
    Yota64 Professional Threadjacker

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    Roger that
     
    Yota64, Jun 8, 2014
    #189
  10. Jun 13, 2014 at 12:00 PM
    #190
    Mikeyjd

    #190
    Mikeyjd MPG Enthusiast

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    [​IMG]
     
    Mikeyjd, Jun 13, 2014
    #190
  11. Jun 14, 2014 at 5:59 AM
    #191
    worthywads

    #191
    worthywads Well-Known Member

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    wow, nice tank, must be maximizing the pulse and glide. :bowdown:
     
    worthywads, Jun 14, 2014
    #191
  12. Jun 14, 2014 at 6:28 AM
    #192
    Mainmoe02

    #192
    Mainmoe02 Well-Known Member

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    so your getting 35mpg??? or am I reading the chart wrong
     
    Mainmoe02, Jun 14, 2014
    #192
  13. Jun 14, 2014 at 6:36 AM
    #193
    Snookie

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    Snookie Monkey Tamer

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    91 octane for the 4.0 in a 2014 are U sure Sir :eek: ?

    Where can I find that information ?

    Thanks
     
    Snookie, Jun 14, 2014
    #193
  14. Jun 14, 2014 at 6:54 AM
    #194
    Madjik_Man

    #194
    Madjik_Man The Rembrandt of Rattle Can

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    Only the upstream O2 sensor affects gas mileage.
     
    Madjik_Man, Jun 14, 2014
    #194
  15. Jun 14, 2014 at 10:00 AM
    #195
    smmarine

    #195
    smmarine Well-Known Member

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    Yes sir. All 4.0. It will run 87, just not the most efficient in power or fuel economy. I don't have direct links, just from reading in threads. Type in octane or fuel into the search bar. You should have plenty to read
     
    smmarine, Jun 14, 2014
    #195
  16. Jun 14, 2014 at 11:43 AM
    #196
    Mikeyjd

    #196
    Mikeyjd MPG Enthusiast

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    Grill Block, Front Belly Pan, 3 inch lift shims in front, AAL rear suspension lift, Ultragauge Instrumentation, Flush Topper, Full Synthetic Fluids
    Definitely maximizing P&G. I had a 40 mile stint of 41.3mpg that made an 80 mile trip 40.2. Mostly 33-34mpg trips though.


    Correct :) The warmer weather along with maximizing Pulse & Glide are key factors along with the recent aero work I've done.

    http://csus-dspace.calstate.edu/bitstream/handle/10211.9/169/combined-finished.pdf?sequence=1
     
    Last edited: Jun 14, 2014
    Mikeyjd, Jun 14, 2014
    #196
  17. Jun 22, 2014 at 4:32 PM
    #197
    Mikeyjd

    #197
    Mikeyjd MPG Enthusiast

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    97 3.4L 4x4 DLX
    Grill Block, Front Belly Pan, 3 inch lift shims in front, AAL rear suspension lift, Ultragauge Instrumentation, Flush Topper, Full Synthetic Fluids
    New Best Tank!

    2014-06-22

    478.8 mi
    770.55 km
    13.017 gal (US)
    49.27 L
    438.67 kWh
    $3.68/Gallon ($47.90 total for this fill)
    36.78 mpg (US)
    6.39 L/100 km

    Ultra Guage read 37.21
    80% Back Roads 20% Highway
    87 Octane Fuel (Mobile 1)

    Had to use my heater once during city traffic to nullify thermal runaway of the cooling system. Opened up more of the grill to compensate afterwards. Just finished Air Dam and changed rear differential fluid to Amsoil Severe Gear Synthetic Extreme Pressure Gear Lube
    $28 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    75W-90
     
    Mikeyjd, Jun 22, 2014
    #197
Page 10 of 10

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