Chris Croft's Personal Blog

April 4, 2011

my MPG experiment in my Audi

Filed under: Lists, Random stuff - uncategorisable, Travel and driving — chriscroft @ 5:15 pm

(It’s a 2 litre diesel, by the way)

Of course, you never know if the instrumentation is telling the truth, but I tried putting cruise control on at various speeds on a flat road (hey Mr Plod, it might not have been in the UK…) and this is what I found:

80 mph – 55 mpg
85 – 45
90 – 37
100 – 32
110 – 28

so the conclusion is that speeding is not only dangerous (yes yes Mr Plod!) but also quite expensive!

I’ll try it for 50 and 70 when I can find a road where I can go that slowly without annoying all the other drivers…

though early indications are that the mpg at 50 or 70 seems to be worse than at 80! Could it be that my car has an optimum speed of 80? (Which is of course illegal, Mr Plod, yes I know – what a shame!)




  1. These are km/hour?

    Comment by Martin Herrington — April 5, 2011 @ 1:11 am

  2. Well I am impressed. Mary and I had an A3 diesel and XC90 diesel in Brussels and now we have the same two cars in a gasoline stylee in the US. Basically add 10mpg per car for the difference between petrol and diesel. (You have to allow first for the different gallon of course).

    Comment by Martin Herrington — April 7, 2011 @ 2:59 am

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