Fortuner D4D fuel consumption - Page 2





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  1. #21
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    Quote Originally Posted by PieterOos View Post
    Why, and making it worse or better?
    Takes longer to build turbo pressure
    More fuel needed to spool turbo.. thus more pressure applied initially to accelerator..

    It is a known fact that engines produce more power at sea level than at altitude, even turbo engines..

  2. #22
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    From personal experience when I went up to JHB in my Fortuner, I'm sure I felt a slight drop in performance but the consumption stayed pretty much the same??
    FJC - Just Cruising

  3. #23
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    Quote Originally Posted by PieterOos View Post
    Why?
    Quote Originally Posted by konstanddp View Post
    I would expect higher altitude = less oxygen, thus lower power etc
    Yes, but less pressure, not actual molecule count..

  4. #24
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    Fuelly.com usually gives you a good feel for real world consumption on most vehicles. Keep in mind that the figures might be a bit conservative, because only people who care about their consumption will bother to upload the stats!

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    Quote Originally Posted by dirtshark View Post
    From personal experience when I went up to JHB in my Fortuner, I'm sure I felt a slight drop in performance but the consumption stayed pretty much the same??
    Well that is in its self impossible.. If you have less performance for the same engine you will use more fuel to achieve the same amount of work.

  6. #26
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    And the effect of less air resistance at altitude on vehicle aerodynamics? (Power to overcome aerodynamic drag?)
    Last edited by PieterOos; 2015/09/08 at 09:35 AM.

  7. #27
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    Quote Originally Posted by PieterOos View Post
    And the effect of less air resistance at altitude on vehicle aerodynamics? (Power to overcome aerodynamic drag?)
    We're talking urban consumption.. I think


    And the effect you are talking about will be minute and only works on really big cars

  8. #28
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    Quote Originally Posted by Andrew bin Achmet View Post
    Well that is in its self impossible.. If you have less performance for the same engine you will use more fuel to achieve the same amount of work.
    I really don't know - just sharing my experience Maybe I will start another thread to get input from all.


    I see a few guys get the same (good) consumption up top as we get down here though
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  9. #29
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    Thanks SuzukiPiet. Fuelly.com indicates an average of 9.8km/L for 2009 model diesels
    2009 Toyota Fortuner 3.0 d-4d 4x2
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  10. #30
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    I must be honest, I do not believe that you can achieve above 8.0km.l in a Fortuner in urban driving (real urban driving - stop streets etc)

    I will recommend that people who claim that they do, use Fuelly for some time and see for themselves
    Last edited by Dustbin; 2015/09/08 at 09:44 AM.

  11. #31
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    Quote Originally Posted by konstanddp View Post
    Thanks SuzukiPiet. Fuelly.com indicates an average of 9.8km/L for 2009 model diesels

    Sure its not 7.3L/100kms
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    Quote Originally Posted by konstanddp View Post
    when I got it, the computer was on 9.2 and now also on 7.3 after I cleared it on the previous fillup. can it be that a heavy foot can make such a big difference??

    Yes! I can drive my Grand Vitara 2.4 in town at 9.0km/l (without TOO much effort), but it is EASY to get that down to 5km/l!


    Driving style is everything when it comes to fuel consumption. Top Gear once had a show where a BMW M3 beat a Toyota Prius on fuel consumption...
    Last edited by SuzukiPiet; 2015/09/08 at 09:49 AM.

  13. #33
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    Agree with more power required = higher consumption

    (But then again - more power = higher consumption, still more power on sea level, so....)

    Modern ECU's (Turbo) usually do air pressure compensation as well, getting the output closer to sea level pressure. (I *THINK* 5% or so loss instead of ~1% / 100m, which can get to ~15% on the Highveld. (Non- TC))

    However - I would guess the differences are quite small as can be witnessed by e.g. my D-4D's consumption @ ~1500m, vs. Disrtshark's (sea level) which was more or less the same.

    IMHO - 7.3 is way out, even on the Highveld.

    Interesting article, http://www.wseas.us/e-library/confer...LA/EELA-29.pdf, but for non-turbo.
    Last edited by PieterOos; 2015/09/08 at 11:02 AM.

  14. #34
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    Quote Originally Posted by Andrew bin Achmet View Post
    I must be honest, I do not believe that you can achieve above 8.0km.l in a Fortuner in urban driving (real urban driving - stop streets etc)

    I will recommend that people who claim that they do, use Fuelly for some time and see for themselves

    Mine did better (9), measured tank to tank and on the computer(which was 100% correct) for over two years, as I said it averaged out at 10.
    There are thousands that get the same consumption.
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  15. #35
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    Quote Originally Posted by dirtshark View Post
    Mine did better (9), measured tank to tank and on the computer(which was 100% correct) for over two years, as I said it averaged out at 10.
    There are thousands that get the same consumption.
    I mention again..... URBAN consumption.

    My Fortuner that I had in 2008, gave me an AVERAGE of 9.7, but less than 8 in town..

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    Quote Originally Posted by Andrew bin Achmet View Post
    I must be honest, I do not believe that you can achieve above 8.0km.l in a Fortuner in urban driving (real urban driving - stop streets etc)

    I will recommend that people who claim that they do, use Fuelly for some time and see for themselves

    Log into my fuelly. http://www.fuelly.com/car/toyota/for...kes1754/110888

    PS: I have the 2011 model. They are more thirsty than the 2006-2009 models!
    Last edited by JacoE; 2015/09/08 at 09:58 AM.
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  17. #37
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    Is there anything that can be done to improve it? tuning wise
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  18. #38
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    Quote Originally Posted by JacoE View Post
    Log into my fuelly. http://www.fuelly.com/car/toyota/for...kes1754/110888

    PS: I have the 2011 model. They are more thirsty than the 2006-2009 models!
    Very impressive!

    You obviously are late for all your appointments

  19. #39
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    Quote Originally Posted by konstanddp View Post
    Is there anything that can be done to improve it? tuning wise
    Maak jou regter groot toon kleiner!

  20. #40
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    7.3 is far to high FACT!! I never got worse than 9 even in 100% urban.
    My FJ has averaged 6.9 combined!! That's for a 4L auto with the aerodynamics of a post box!!!
    Last edited by dirtshark; 2015/09/08 at 10:13 AM.
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