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Author Topic: Fuel Consumption in Sport Mode.  (Read 6383 times)

Offline APE MAN

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Fuel Consumption in Sport Mode.
« on: January 21, 2012, 01:16:37 am »
Has anyone tried to measure the difference in fuel consumption between normal mode and Sports Mode.   I travel a 30 mile journey to work much of which is dual carriage way so I spend a lot of my journey at 70mph (officer).   I have found after driving a week with the sport mode off I found fuel consumption had droped to under 35mpg, I thought I would watch what happened to the current fuel consumption as I switched to Sport whilst cruising along at the national limit.   The consumption suddenly went up which is not what I expected, but as I was hardly touching the accelerator and when I did I had to let my foot off to avoid rear ending the car in front where as I had been pressing it down in normal mode so I suppose it may actually be cheaper to have all the power available.

Has anyone else tried their car over a reasonal period of time to see what difference enjoying the power does to fuel consumption?

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    Offline Hozepipe

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    Re: Fuel Consumption in Sport Mode.
    « Reply #1 on: January 21, 2012, 08:09:32 am »
    This topic is a hardy perennial. Some say turning sport mode off helps consumption but most say it makes no difference (its how you drive) and some, like you, say it actually makes consumption worse.
     
    Personally I'm of the opinion (stated by John501) that the button is purely for legislational reasons and is only used by masochists and the delusional :'(
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    Offline MarcoPolo

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    Re: Fuel Consumption in Sport Mode.
    « Reply #2 on: January 21, 2012, 08:20:28 am »
    Over 8 months and 12000 miles S/N makes no difference at all, although the car did 35-37 mpg new and does 28-30 mpg now over the same daily dual carriageway and B roads. I regularly reset the trip and now use £10 pw more gas  :-\.

    I am constantly experimenting with 95/97/99 RON fuel and I cannot tell the difference in performance or economy  :-\

    I AM TOTALLY CONVINCED anything above 95 RON is kept in tanks so long through poor sales it is no better than regular 95 RON, as fuel "goes off". I often ask Tesco staff how Momentum sells and they say "it doesn't".

    APE performance has improved significantly over time and keep in S. In fact the power still on tap at 90 mph in sixth is impressive.

    I also discovered:

    By comparison the Alfa DNA system defaults to N so each time you start you have to set it to S. What a PITA!

    The difference in performance between N and S in the A500 is HUGE compared with N and S in the APE.

    Offline sandys

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    Re: Fuel Consumption in Sport Mode.
    « Reply #3 on: January 21, 2012, 04:27:31 pm »
    My experience as ever differs from others.

    For S/N I have seen a difference on my daily drive (A/B roads max 60mph) , in N mode I can stay off boost keeping up with traffic and maintain between 38-44mpg on a whole tank depending on the amount of overtaking or clear sections when I can gun it past the 50 everywhere brigade, that's pretty reasonable. In N mode it is easy to keep the car at 60-70mpg on the inst gauge when in the traffic train, in sport mode the car is eager and boosting a lot more for little pedal travel and for the same instances of cruising in traffic I can't get it anywhere near that, more 50ish which sees me over a tank at 33-38.

    That was prior to SS kit, now I struggle to better 39mpg in N mode and sport mode is much the same as before.

    On motorway, I can't find a difference between N and S really, it seems you need plenty of boost to maintain a the real motorway speeds, I could see that for this sort of cruising Sport mode which has the extra torque might yield a benefit.

    Regarding fuel, I have definitely experienced a difference, it was most noticeable when I had done a morning of laps on one fuel and switched to the other, in this instance it was very much night and day, driving about day to day when you are not at the limits I would imagine it is less so. Besides the manual tells me to use 98 if I have a hope of reaching the advertised figures ..... that I already reached prior to SS remap now I reach higher figures again :P :D

    Offline APE MAN

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    Re: Fuel Consumption in Sport Mode.
    « Reply #4 on: January 23, 2012, 10:21:34 pm »
    Thanks for the help guys, I think I am going to leave it in Sport unless driving round town when it can be a problem rear ending Micra drivers at the lights (especially those wearing hats).

    A friend has an Alfa Guilietta and he leaves his car in "N" only occationally switching to "D", I have told him he shouldn't be allowed on the road.

    Offline Hozepipe

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    Re: Fuel Consumption in Sport Mode.
    « Reply #5 on: January 24, 2012, 08:12:19 am »
    A friend has an Alfa Guilietta and he leaves his car in "N" only occationally switching to "D", I have told him he shouldn't be allowed on the road.

    Get some new friends :'(
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    Offline Carlos

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    Re: Fuel Consumption in Sport Mode.
    « Reply #6 on: January 24, 2012, 08:14:23 am »
    Ive tried all fuels and am not convinced that you get better consumption on the higher octaine stuff.  I also dont trust my mpg meter as i reset it everytime i fill...

    If i use bp ultimate it says i am on about 33mpg at the end of the tank and i get about a week out of it...

    If i use Sainsburys normal stuff it says i still get about 33mpg and i get about a week and a half to two weeks out of it doing the same journey!

    I dont notice any power difference to warrant going for the high octaine expensive stuff so ill be filling up at sainsburys and getting an extra half to a week out of my tank from now on...  :thumb:

    Offline DanDey

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    Re: Fuel Consumption in Sport Mode.
    « Reply #7 on: January 24, 2012, 09:24:20 am »
    ofcourse  'some say " that the weather, colder or hotter will also have an effect  :whistle:

    ok, last summer going to silverstone I tried exactly this. Bearing in mind the 50 mph section of the M1. sport button OFF going up there, I managed 44mpg. As someone else said, keeping with flow, foot off gas going down hill, drive like elfin miss daisy  ::)

    coming back, sport ON, driving at a good pace, bursts of FUN! I managed 37mpg.

    I only use normally unleaded, although SHELL does make Rory pop more. I always bought the car for fun and at the same time fuel savings. Over the 18mths of having him, I have averaged £26 a week on fuel.

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    Offline sandys

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    Re: Fuel Consumption in Sport Mode.
    « Reply #8 on: January 24, 2012, 10:11:04 am »
    Ive tried all fuels and am not convinced that you get better consumption on the higher octaine stuff.  I also dont trust my mpg meter as i reset it everytime i fill...

    Pretty much tracked every tank since I had it and noted mpg meter readings versus actual and its never far off. +/- 2mpg, good enough to work out what you are going to get from the tank on that run if your driving is consistent.

    I have not noticed an improvement in mpg changing fuels, more so in performance in the upper reaches of the power band, on normal stuff car is running out of puff 5500-5750rpm on the other stuff it'll pull nice to just before the limiter at about ~6200rpm.

     

    hungry