Monster MotorsportBadger5
Results 1 to 15 of 15
  1. #1
    Reverse Gear

    Status
    Offline
    Join Date
    Aug 2008
    Posts
    27

    How accurate is fuel MPG reading on your car?

    I'm just wondering how accurate people find the MPG reading on their cars, should it to be trusted?

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    wallacr's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Nov 2003
    Posts
    241
    I'd say mine is pretty close to accurate

  4. #3
    J7USS's Avatar
    Shuddup Foooool!!

    Status
    Offline
    Join Date
    Oct 2006
    Location
    LEICESTER
    Posts
    3,671
    what should it read!!!
    Mines all over the place...

    60 gave me 198 mls before indicator came on....

    ....whereas 20 gives me around 70 - 80mls nowadays.

  5. #4
    quattrojames's Avatar
    Moderator

    Status
    Offline
    Join Date
    Mar 2008
    Location
    Dorset
    Posts
    13,856

    My Social Networking

    Follow quattrojames On Twitter Add quattrojames on Facebook
    I have never really compared mine with actual calculations. Unless you brim the car and then brim it when you fill up there is no way of knowing how much fuel goes in anyway. I have had mine with 0 miles left on the DTE gauge and still only put just over 60 litres into a 66 litre tank

    I think it is more useful as a representative gauge so you can compare driving styles etc. The figures may not be spot on but when you compare them against themselves they become a bit more meaningful.

    I don't think mine is far out though.
    Ingolstance Read about my A6 HERE.

  6. #5
    Reverse Gear

    Status
    Offline
    Join Date
    Aug 2008
    Posts
    27
    Thanks for the feedback. I'm getting close to the end of my first tank, the MPG thats coming up seems to be a lot better than I'd of imagined. I'll be able to confirm it when I fill it up.

  7. #6
    dansansome's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jun 2008
    Location
    bournemouth
    Posts
    165
    i fill up every week, and mine over-read by roughly 10% so i adjusted it using vagcom and now its pretty spot on.

  8. #7
    evilscotsman's Avatar
    Space Cowboy

    Status
    Offline
    Join Date
    May 2008
    Location
    Fife, Scotland
    Posts
    1,345
    i zero'd the trip, filled up 70 unleaded at morrisons, and got 415 miles before fuel warning came on, and thats NOT driving like your gran....

    The DIS said I had 435 to begin with, so pretty accurate over the tankful i'd say.

    If it says I have 55 miles left and I zero the trip and drive normally then I do get 55 miles or there abouts before 0 miles appears.
    Last edited by evilscotsman; 19th August 2008 at 11:59.
    B4 TDI - old skool project / daily driver...if it ain't broke, it's probably an Audi...


  9. #8
    coyote's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Dec 2007
    Posts
    213
    415 miles from a 1.8T! Fancy swapping cars evil?

    80 to fill the tank with Shell Optimax, Dis says 435-450 miles and I get between 330-370 miles before the warning light comes on depending on driving style (usually 330)

  10. #9
    Nickynibbles's Avatar
    Damn it where's 7th gear when you need it?!

    Status
    Offline
    Join Date
    Jun 2007
    Location
    Hampshire
    Posts
    846
    The DIS over-reads mpg by a couple of mpg I always found when doing the maths after a complete fill up. The trip computer in my Smart Roadster is worse though under-reading by 4-5mpg, although when it says 55mpg I know its 59-60mpg really so can monitor my mpg easily enough still!
    A4 3.0 Quattro Sport - Gone & missed everyday!

    Current road going missile.....

    ........Smart Roadster - arguably the most fun you can have in a car without using lube!!

  11. #10
    pjmspeedy's Avatar
    Dude, what's mine say ?

    Status
    Offline
    Join Date
    Apr 2008
    Location
    North West
    Posts
    1,057
    Mine seems to be spot on. I've been using the below link to check it against.

    http://www.torquecars.com/tools/uk-mpg-calculator.php

  12. #11
    evilscotsman's Avatar
    Space Cowboy

    Status
    Offline
    Join Date
    May 2008
    Location
    Fife, Scotland
    Posts
    1,345
    Quote Originally Posted by coyote View Post
    415 miles from a 1.8T! Fancy swapping cars evil?

    80 to fill the tank with Shell Optimax, Dis says 435-450 miles and I get between 330-370 miles before the warning light comes on depending on driving style (usually 330)
    LOL - honestly thats gospel. For example I picked up the car in Liverpool in april, filled up (65 then) and drove home 330 miles at 80mph solid from Liverpool to Edinburgh then on another 40 miles to glenrothes, and hit Fife with a half tank left!

    It really is quite good on fuel I must admit, though I change up at 3k to 3.5k most of the time, and get steady consumption. When I do occasionally paste it to 5k it does start to drink it a bit!
    B4 TDI - old skool project / daily driver...if it ain't broke, it's probably an Audi...


  13. #12
    coyote's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Dec 2007
    Posts
    213
    That explains it! I always change gear at about 5k.

    I'm on a road trip this weekend so will try to drive more sensibly and see what figure I can get upto. Its going to be hard tho as since I got the remap I love the exceleration from 3k - 5k

    Quote Originally Posted by evilscotsman View Post
    LOL - honestly thats gospel. For example I picked up the car in Liverpool in april, filled up (65 then) and drove home 330 miles at 80mph solid from Liverpool to Edinburgh then on another 40 miles to glenrothes, and hit Fife with a half tank left!

    It really is quite good on fuel I must admit, though I change up at 3k to 3.5k most of the time, and get steady consumption. When I do occasionally paste it to 5k it does start to drink it a bit!

  14. #13
    stoakseya4's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Aug 2005
    Location
    Kent, UK
    Posts
    1,227
    My audi's ahve always been pretty accurate. And I always do a calculation to see what I'm getting, fairly regularly. It's not 100% but close enough not to worry about.

    The 1.9tdi gets c600-650 miles on a tank and the 1.8T gets c400...
    1998 S4 Widebody Saloon Track Car
    2006 320d SE Touring - Ze Fuhrer's Wagon
    2001 B5 RS4 510bhp & 508ft lbs SOLD
    1.9TDI (130) Sport -Black-Revo - Mrs Stoakseya4's mota - SOLD

  15. #14
    Reverse Gear

    Status
    Offline
    Join Date
    Aug 2008
    Posts
    27
    Well, having filled up yesterday I worked out I'm getting 35.5 MPG which is about 10% less than the DIS reading.

    However, last night I changed the wheels going from the OEM 16's to 8x18's & 225/40x18 tyres.

    Do you think this is going affect the fuel consumption?

  16. #15
    4th Gear

    Status
    Offline
    Join Date
    Aug 2004
    Location
    Aberdeenshire
    Posts
    740
    Wider wheels will definitely reduce your MPG. More rolling resistance and air resistance plus they may also be heavier. Shouldn't affect the gearing too much as they should have a very similar circumference.

    Strangely, Audi doesn't make any distinction in MPG or CO2 between standard, SE and Sport/S-Line models despite weight and wheel width differences.

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO