Page 1 of 5 123 ... LastLast
Results 1 to 10 of 46

Thread: Fuel Economy

  1. #1
    Forum User Scougar's Avatar
    Join Date
    Feb 2007
    Location
    West Devon
    Posts
    889

    Fuel Economy

    I have been monitoring my fuel economy since I got the valver and have made a strange discovery.

    Based on: Fill right up till no more can go in. Run car till near empty, take note of milage, refill till no more can go in. Work out fuel econ.

    When I first started using the car, my first 2 fills were around the 35mpg mark. I drove it a 'little' harder, and my economy dropped to around 31mpg. Past 2 fills, I have ragged the car a bit taking it upto the limiter many times. I returned 35.8 mpg!

    So my question is... WHY? Why if i drive harder to i 'seem' to get the same or better economy? I can't remember if I was using super or regular, but will experiment with this later

    My calculation is: Milage divided by gallons required to fill when near empty get mpg.

    Matthew

  2. #2
    Forum User Matty86's Avatar
    Join Date
    Sep 2006
    Location
    Essex
    Posts
    1,536
    mine does that

    and with the diesel box 45mpg on motorway runs is easy

  3. #3
    Founder northy's Avatar
    Join Date
    Sep 2004
    Location
    Williams Land Cars:
    Posts
    15,204
    £10 for 100miles on a motorway run for me....

  4. #4
    Forum User stan's Avatar
    Join Date
    Feb 2005
    Location
    Carlise/Swansea
    Posts
    3,230
    Superunleaded will deof improve mpg.

    I also was getting better mpg in the Willy 2 i had....45mpg cruising at 80mph as opposed to 40mpg in the 1.8 at same speed.

  5. #5
    Forum User Scougar's Avatar
    Join Date
    Feb 2007
    Location
    West Devon
    Posts
    889
    hmm. I can get SUL for about 85 from sainsburys, so that's when I normally get it. Have heard a fair few times about people getting better econ on SUL. Not managed to get over 35mpg (overall) yet though.

    45mpg on the diesel box (impressive!)? How is the gearing/final drive set up compared to 1.8 and williams boxes?

    Matthew

  6. #6
    I seem to get about 35mpg no matter how i drive :P

  7. #7
    ive never hit 35, think 32 is best ive had

  8. #8
    Forum User
    Join Date
    Jan 2006
    Location
    Buckingham
    Posts
    487
    i'm too scared to work it out!

  9. #9
    Forum User
    Join Date
    Aug 2005
    Location
    Southampton
    Posts
    7,292
    I don't really give a **** what it gives me in MPG. It's a performance car not a little 1.0 town car

  10. #10
    Forum User
    Join Date
    Oct 2006
    Location
    Loughborough/London
    Posts
    338
    Quote Originally Posted by Justin..
    I don't really give a f**k what it gives me in MPG. It's a performance car not a little 1.0 town car
    knows'it!


 

Similar Threads

  1. Replies: 0
    Last Post: 07-06-2011, 09:52
  2. Causes of poor fuel economy
    By Wobba in forum Mechanical
    Replies: 45
    Last Post: 16-01-2010, 00:38
  3. Fuel pipes & fuel rail - F7P/F7R
    By cliokiz in forum Items for Sale
    Replies: 3
    Last Post: 18-03-2008, 00:30
  4. Replies: 5
    Last Post: 15-05-2007, 19:01
  5. Fuel?
    By Andyvalver in forum WilliamsClio Discussion
    Replies: 35
    Last Post: 16-12-2005, 11:50

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •