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Increase on fuel consumption??

  • 03-11-2010 8:29pm
    #1
    jupiter00
    Registered Users, Registered Users 2 Posts: 77 ✭✭


    We have noticed an increase in fuel consumption on the car 'computer readout' in the last 2 weeks. It was doing 6.8 -6.9 litres per 100km and now its gone up to 8 litres per 100km. The driving conditions are the same, no towing, no carrying anything heavy, same driver and same journeys, shopping/school runs. Its a new quashqai 1.6 petrol and we've had it since Jan til now. Has anyone experience of this?


Comments

  • #2
    Ardennes1944
    Registered Users, Registered Users 2 Posts: 9,238 ✭✭✭Ardennes1944


    have same problem with my mk4 astra! it drinks it!


  • #3
    Kev.
    Registered Users, Registered Users 2 Posts: 927 ✭✭✭Kev.


    Same problem with my Golf GTI......except its usually up at 14l/100km


  • #4
    Esel
    Registered Users, Registered Users 2 Posts: 23,092 ✭✭✭✭Esel
    Not Your Ornery Onager


    Go back to the dealer, as it's still under warranty.

    Not your ornery onager



  • #5
    okane1
    Registered Users, Registered Users 2 Posts: 1,148 ✭✭✭okane1


    jupiter00 wrote: »
    We have noticed an increase in fuel consumption on the car 'computer readout' in the last 2 weeks. It was doing 6.8 -6.9 litres per 100km and now its gone up to 8 litres per 100km. The driving conditions are the same, no towing, no carrying anything heavy, same driver and same journeys, shopping/school runs. Its a new quashqai 1.6 petrol and we've had it since Jan til now. Has anyone experience of this?


    Have you only noticed it recently, ie cold weather? If so, I assume with the extra use of the heater and car's demister, this might explain the increase in fuel consumption. Also, check all your tyre pressures, lower pressure in tyres also give low consumption.
    Finally, I wouldn’t completely trust those computer read outs, best to calculate it manually to see if there is a problem.


  • #6
    ytareh
    Registered Users, Registered Users 2 Posts: 1,107 ✭✭✭ytareh


    Your tyres will have dropped maybe 4 or 5 psi due to cold weather -that will increase mpg along with the fact that most cars do less mpg in the cold anyway .


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  • #7
    Sam Kade
    Registered Users, Registered Users 2 Posts: 12,313 ✭✭✭✭Sam Kade


    Do you change the engine oil and filter on time? If you go over the oil change interval you will notice a big increase in fuel consumption.


  • #8
    fletch
    Registered Users, Registered Users 2 Posts: 7,423 ✭✭✭fletch


    Most likely down to the cold weather...car taking longer to heat up. Happens mine every winter.


  • #9
    peasant
    Registered Users, Registered Users 2 Posts: 17,819 ✭✭✭✭peasant


    Quite normal. A good bit is down to the increased load on electrics. Lights on all the time, demisters, wipers, heated mirrors, etc ...all that needs quite a bit of current that your alternator needs to work harder for. And as the load increases on your alternator so does the power needed to drive it.


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