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      10-23-2011, 01:29 PM   #55
Frobius
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Drives: F11 530d M-Sport
Join Date: Aug 2011
Location: Huntingdon, UK

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Quote:
Originally Posted by Diseasel View Post
Well looks like everyone was wrong about the BHP... Maybe...
I don't get videos at work but is that the fifth gear test of premium diesels? I remember seeing that and noting that the car did make more power with fuels like V-Power Diesel and BP Ultimate Diesel.

What I do think though is it's kind of hard to see if the fuel offers more economy just by looking at your OBC. Every time you drive, you'll use a tiny bit more or less fuel than the last time no matter how much you try and drive the same.

I wonder if anyone's done a similar test as to that fifth gear one, but for fuel economy. Even on a rolling road it should work. Put 20L in, run it until dry, note the mpg / trip distance when it runs out (obviously going to be way off real life figures). Then do the same but with a premium diesel and see what the mpg / trip is..

About as scientific as I can think of?!
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