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      12-20-2012, 10:30 AM   #12
ovekvam
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Norway
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Drives: 2021 Galvanic Gold i3S
Join Date: Jun 2012
Location: Bryne, Norway

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Quote:
Originally Posted by garethjonesuk View Post
I tend to set cruise control to 75mph and my journey is 150 miles return, about 100 miles motorway and remainder relatively quiet A roads and I only get about 51mpg. The motorway is pretty quiet an I mostly never need to come off cruise control. I don't have AC on. I have a 118d M Sport Auto. The mpg doesn't seem to change noticeably between 18" or 16" tyres. On the A roads I use Eco Pro mode on motorways I have tried both Eco Pro and Comfort, neither makes much of a difference. I am not heavy on the accelerator or the brakes, the tyre pressure is spot on and still I don't get anywhere near the expected mpg. :-(
I think the consumption would be more in your favour if you drove slower. The faster you go, the more air you have to move around, wasting energy.
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