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Thread: Mpg info?

  1. #1
    VXRed blooded
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    Default Mpg info?

    Just wondering what mpg the other H owners get

    For me a full tank and I mean filler neck too completey brimmed from a flashing fuel light £70 of v power

    Range computer varies between 310-330 miles after each fill up

    On boost giving it the beans instant consumption drops to a shocking 7.1 mpg

    If I'm very careful like 6th gear 1k rpm at 30mph instant consumption can rise as high as 60-70 mpg and it stays there

    I tend to actually average between 250-300 miles per tank

    Main reason I ask is i have a mate in Hull with a stage 3 vxr he claims for £50 from empty his range says 500 miles I reckon he is telling porkies

    Or is my particular car just that inefficient

    What figures do you lot get in comparison to mine above?

    Cheers andy
    Last edited by Andyb712; 6th October 2018 at 01:34 PM.
    2009 Astra H Vxr arden blue standard for now but with mtc top hat and crossover delete and ramair filter

    Planning to go stage 3/3.5 eventually

  2. #2
    VXR Adam"san" w20adm's Avatar
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    His range might say 500 but he won't get near that
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  3. #3
    VXRed blooded
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    Yeah I thought as much but more curious as to what specs other people get from their trip computers

    For example say I completely brim it the range averages about 320 miles

    And if I drive very carefully I have had it go up as high as 390 miles on the range but if gets as high as 390 as soon as you give it the beans the range drops back down in huge chunks very quickly
    2009 Astra H Vxr arden blue standard for now but with mtc top hat and crossover delete and ramair filter

    Planning to go stage 3/3.5 eventually

  4. #4
    VXRed blooded Rksmith's Avatar
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    When I first got mine it use to say 398 every time it was full now it says 360 how it’s changed I don’t know. But I get around 240-270 out of tank on v-power.


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  5. #5
    VXR Adam"san" w20adm's Avatar
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    Honestly mate take that range thing with a pinch of salt. It just takes a couple of drives of heavier driving and it can suddenly shed 30/40/50 miles in a minute.

    My average tends to hover between 29 and 31
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  6. #6
    VXRed blooded
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    Good to know lads basically just to ascertain if mine had any issues

    For example few weeks back my mpg went absolutely disgusting put a new precat lambda sensor in and boom mpg shot right back up

    The original one had probably done 100k and was covered in white soot most probably due to the leaking stem seals

    So it was cleary making the ecu run the car richer and richer overtime

    As we all know that's what lambda sensors do anyway as they age

    I don't think mine was helped by the white soot all over it lol
    Last edited by Andyb712; 6th October 2018 at 01:53 PM.
    2009 Astra H Vxr arden blue standard for now but with mtc top hat and crossover delete and ramair filter

    Planning to go stage 3/3.5 eventually

  7. #7
    VXRed Ollie_b163's Avatar
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    Depends what sort of driving you do. On a run I can get 30+ easy on mixed driving with motorways etc, but my day to day use (6 mile round trip to work and back) sitting in traffic I'm averaging 18mpg.
    I tend to not really care about that sort of thing anyway, just fill her up when it's needed and forget about it!

    Sent from my SM-G960F using Tapatalk
    08' Silver Lightning Astra VXR

  8. #8
    VXRed blooded
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    Good info lads thanks

    So what's the average range everyone's trip computer says to a full tank?
    2009 Astra H Vxr arden blue standard for now but with mtc top hat and crossover delete and ramair filter

    Planning to go stage 3/3.5 eventually

  9. #9
    VXR Adam"san" w20adm's Avatar
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    Mine has changed over the years. Also it depends on the type of fuel you use.

    I'd say 320-350 is a good average. But as said, if yours says less just take it with a pinch of salt. It can change on a whim.
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  10. #10
    VXRed Ollie_b163's Avatar
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    Quote Originally Posted by Andyb712 View Post
    Good info lads thanks

    So what's the average range everyone's trip computer says to a full tank?
    Don't think I've ever put a full tank in lol, only ever put in £30 usually

    Sent from my SM-G960F using Tapatalk
    08' Silver Lightning Astra VXR

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