Drive a Zafira 1.6? Get 7 more mpg!

Total tosh, used this last week and it gave me less per tank than V-Power, i don't see shell running around saying you get epic amounts of MPGz more vs peasant fuel.
 
Is nobody going to intelligently critique their published research, or is it just going to be a thread of lolz?
 
I think it's funny which cars have been chosen to represent different sections of the motoring market. Merc C180K as 'executive' :)
 
My GCSE Science skills tells me this is a flawed analysis. We can have a detailed discussion about why it's fail, but I think it's all pretty obvious :D
 
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