Best Diesel?

[Adrenaline]

Shell or BP? from what i've heard shell do the best fuel...anything to back this up? the colour of the diesel is indigo/blue how funky

[MPG Lover]

A quick study was done by Fifth Gear - for petrol they found that only performance cars appreciate the difference. See:

http://fifthgear.five.tv/jsp/5gmain.jsp?lnk=601&featureid=143&pageid=272