Real world fuel costs

Discussion in 'M5 (1984-present)' started by KibbDJ, Jan 16, 2020 at 6:15 PM.

  1. 16 Jan 2020 at 6:15 PM #1
    KibbDJ

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    Currently in a 640D, I work 34 miles away so commuting say 70miles per day, 90% of that is motorway so as you can imagine the 640D is amazing on fuel, compared to my old E92 M3.

    Over the next month or so (end of Feb) the 640D will be going and ill be getting either an M5 or M6GC, either way, running costs will be identical so I am after some advice off those who own one.

    On a motorway run, sat at 75ish..... what will it be returning MPG wise, I am trying to get a good idea, as this will determine whether or not I spend 30k on one, or 25k and get something like a 2010 F10 520D for around 5k for work.

    All help will be appreciated.

    Cheers
     
  2. 16 Jan 2020 at 6:45 PM #2
    JohnM3E90

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    What's this F10 M5 or F90 M5 CP?.
    My F90 would give 26/27 MPG in warm conditions, freezing cold 25 MPG.
     
  3. 16 Jan 2020 at 6:54 PM #3
    KibbDJ

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    By budget will be 30k so LCI F10 M5 or a M6 GC, the above figures are good, I'm guessing the F10 is worse?
     
  4. 16 Jan 2020 at 7:03 PM #4
    JohnM3E90

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    Not by much my M6 Gran coupe would be 25/26 and my F,10 M5 CP 25 also.
    I kept my fuel used in all of them.
     
  5. 16 Jan 2020 at 7:15 PM #5
    KibbDJ

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    Any pros and cons between the both, be interesting to hear from someone who's owned both.
     
  6. 16 Jan 2020 at 7:27 PM #6
    JohnM3E90

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    M6 nicer car, insurance about the same.
    M5 easier to park ( M6 very long).
    Interior M6 wins.
    Boot space M5 better.
    That's about it for them.Rear seats M5 better.
     
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  7. 16 Jan 2020 at 7:50 PM #7
    M3POWERBOY

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    Don’t forget summer months fuel consumption will be better

    In the Winter you might get a shock

    Just bear that in mind
     
  8. 16 Jan 2020 at 8:05 PM #8
    JohnM3E90

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    Yep cold will effect it a few MPG.
     
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  9. 16 Jan 2020 at 8:07 PM #9
    M3POWERBOY

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    Overall the F10 M5 for what it is cruising won’t be too bad- you might find fuel consumption better at 80-85 as it’s more efficient etc- (saying that it’s turbo’d so might not be any better) just play around etc
     
  10. 16 Jan 2020 at 8:08 PM #10
    Fieldy

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    My F10 has averaged 24-26 a tank with a mix of driving through summer. 28-29 on a long run down to Cornwall. We have a Saab 95 Aero beater that does the same to add some perspective.

    Agree with John the M6 interior does look nicer.
     
  11. 16 Jan 2020 at 8:19 PM #11
    stuartk

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    F10 I did from Amsterdam to my front door (458 miles) on one tank of fuel with some left.

    I was on cruise at 70-75 most of the way with a few blasts.

    Believe that's about 16 gallons. That's 28 mpg.
     
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  12. 16 Jan 2020 at 8:29 PM #12
    stuartk

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    80-90mph it is significantly worse than the 28mpg cruising. I could get 480 miles at 70 ish and yet at 90 you would empty it in under 300 easily.
     
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