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  1. #1
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    RS6 Alloys on 2.0TDI Sport

    Hi I've recently upgraded the alloy wheels to some genuine rs6 S line style alloys. They are on my 2004 a3 sport with the standard sport suspension.

    Unfortunately the MPG has suffered on my car which a considerable amount. I have being messing around with different tyre pressure combo's but still cant get it right.

    Anyone who has done the same offer any advice whether its a pressure issue or the fact my suspension is higher than a s line that's causing the mpg reading?

    Tyres are 225/40 r18

    Thanks!

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  3. #2
    turbonutz's Avatar
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    Thicker tyres make econony worse fact. You got budget tyres or old sporty ones? They can make it worse. I belive eu regs recently made tyre firms discontinue tires and re-design them to certain economic and sound levels. As I was told when hunting a set of falks.

  4. #3
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    How drastic has the mpg worsened?

    OEM RETROFITS - CRUISE CONTROL - SAT NAV - BLUETOOTH - AMI - HEADLIGHT SYSTEMS

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  5. #4
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    About 8-10 mpg it has dropped

    The tyres are Nankang. These im pretty sure
    Nankang NS-2 225/40 R18 88W
    Nankang NS-2 225/40 R18 88W - mytyres.co.uk

    I just cant understand how S Line a3's with the same wheels can achieve higher MPG but put the alloys on a sport and its such a drastic change.

  6. #5
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    We had this issue with my a3 when my partner had it car came with 16's and we bought a set of genuine s line/rs6 alloy's and fitted 225.40.18 eagle f1's she always maintained the mpg was a lot worse i'am now selling the 18's and I've bought a set of 17" 5 spoke similar to the a4 s line wheels

  7. #6
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    the poor mpg may be caused by the tyres themselves! certain tread patterns don't lend themselves to good fuel efficiency.

    Any tyre with an E rating isn't going to give you good returns

    ................................................
    2009 A3 SB 2.0T DSG S line
    ''''''''''''''''''''''''''''''''''''''''''''''''''

 

 

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