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Thread: Long term Fuel Economy tests

  1. #1
    Regular Member RobW's Avatar
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    Default Long term Fuel Economy tests

    As mentioned before, I was getting (at best) 47mpg from Supermarket fuel so switched to Esso and was getting 52-53mpg, same driving style, same journey every day, 5 days a week.

    Tanked with Shell last week and got near 55mpg. (32.02L used for 386.7 miles)

    So, using decent fuel will cost more at the pump but will get you further.

    So, Shell @ 142.9ppl = ~ 11.79 pence per mile (55mpg)
    Esso @ 137.9ppl = ~ 11.81 ppm (53mpg)
    Supermarket @ 133.9ppl (with 5p off deal) = ~ 12.93ppm (47mpg)

    I do 365 or so miles for work Monday to Friday so I would save £4.52 weekly using shell over tesco / Morrisons!

    I know a lot of people will defend Supermarket fuel and would prefer to see the gauge move more for their money but at the end of the day and in this 'recession', it is good to save money.

    All figures taken from fill to fill by litres, not by the BC which can be inaccurate!

  2. #2
    VIP-Member Das's Avatar
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    Vehicle : Lada

    Trim : Riva

    Engine : 6.0 V12

    Year : 1954

    Mileage : 567890987

    Default

    Interesting. I've done the last 2 fill up with Shell and not getting below 37 mpg around town. Now on a week of nights so mainly motorway so hoping to get the combined average over the 40mpg mark by the end of the week. Actually surprised at just how accurate the BC is on mine, been giving me exactly what I expect and was getting doing the calculations the proper way.

  3. #3
    Regular Member RobW's Avatar
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    Mine is accurate sometimes but mostly not.

    This reflects what has been said in previous threads, all fuel comes from the same refinery but different brands add their own additives.

    Forgot to say, the car runs a lot quieter, smoother and more powerful with Shell / Esso.

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    I have tested using Tesco 95 and Tesco Momentom 99 and the 99 although more expensive at source, it gives far better MPG. I was getting on average 5-7 mpg more with 99.

    I dont have a Shell near me, so its not really an option for me, but i would be giving it a go if there was one near by.

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    New Member Tmd's Avatar
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    19.3 average so far
    Pretty bad but I knew it before I bought my car.
    Seem to get more from the higher octane stuff but then it's more per gallon to buy.

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    All this said above about cheaper fuel, and does it coke up the inlet manifold and EGR valve quicker? hmm.

    Mick

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    Regular Member RobW's Avatar
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    Quote Originally Posted by MickAP View Post
    All this said above about cheaper fuel, and does it coke up the inlet manifold and EGR valve quicker? hmm.

    Mick
    WTF? What has that to do with anything mentioned in the thread?!

    Are you going to bring up tyre wear next?!


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