Mpg increased by 15%

Discussion in 'Motorhome Chat' started by Ipetchey, Apr 2, 2013.

  1. Ipetchey

    Ipetchey Read Only Funster

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    With an extra 380kg our fuel consumption has improved by 15%, simply by inflating the tyres to the correct pressure.
    A couple of weeks ago we purchased our new (to us) van and drove home 150+ miles with near unladen van weighing 3360kg and averaged around 25mpg. Today we drove 100+miles fully loaded weighing 3740kg and averaged 29mpg. Both similar roads and speeds (60mph on A1/A14). I can only put the better fuel consumption down to me increasing the tyre pressure. When we got home I inflated the tyres from around 55psi, to the recommended 79.5psi..... A bit noisier on concrete roads, but otherwise no noticeable difference driving.

    We have a weigh-bridge in our village, so weighed vehicle empty as soon as we purchased it, then again this morning fully laden (with scooter in garage, generator, heavy awning, full fresh water etc) as we departed on route for Scotland for 6 weeks.

    We have a 4250kg max van, so very pleased that we still have around 500kg spare, although the rear axle was only 100kg off the max, so we have moved as much forward out of the garage as we can.
     
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  2. Geo

    Geo Trader - Funster

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    Thats it then 20 bags of cement in the back tomoz
    and 200lb in the tyres:thumb:
    seriously thats about the best MPG improver you can do
    Get the tyres right
     
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  3. chesterfield hooligan

    chesterfield hooligan Funster

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    :Rofl1: are you sure :Rofl1:

    :Rofl1: that route is not :Rofl1:

    :Rofl1: all downhill :Rofl1:
     
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  4. icantremember

    icantremember Funster

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    500Kg spare capacity ...... that will be a lot of Scotch whisky then all paid for by the saving in fuel costs:thumb::party2:
     
    Last edited: Apr 2, 2013
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  5. oldun

    oldun Read Only Funster

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    How can you measure the fuel consumption accurately over such short jouirneys?

    I hope it's not the onboard computer as they are rediculously inaccurate with fuel consumption.
     
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  6. WynandJean

    WynandJean Funster

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    Now what you need is a set of Jim's tyre pressure thingies and you'll always know that they are at the right pressure. I'm very pleased with mine.

    http://www.tyrepressurealarm.com/

    And if you contact Jim you can get Funster discount.
    Wyn
    :thumb:
     
    Last edited: Apr 6, 2013
  7. Ipetchey

    Ipetchey Read Only Funster

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    It was with the on board computer. I have found it to be quite accurate.

     
  8. motorhomelover

    motorhomelover

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    I increased mine when i got the rear breaks freed off
    was only getting 8MPG on LPG
    now get 11 MPG whoopeeee :thumb:
     
  9. motorhomelover

    motorhomelover

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    mine worked well too :thumb::thumb:
     
  10. Sidney

    Sidney Funster

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    The Fiat unit oddly it does seem to learn - I'm not suggesting it has artificial intelligence but ex factory it's laughable and it gradually gets more accurate. When new mine said I had a range of 470 miles with only a quarter of tank of fuel!

    Reset the thing a few times and it gets better.
     
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