Quote:
Originally Posted by Zebster
Thanks, but this still hasn't helped me one bit with learning about which fuel company supplies Costco!
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There are a limited number of refineries in the country (maybe 6?). Shipping fuel around the country is expensive because it is dangerous and heavy. Consequently refineries tend to supply most retail brands in their locality. So for instance Esso, Texaco, Tesco etc.. around North Lincolnshire will most likely all be supplied from the same refinery on the humber bank. Different brands do, however, demand different additive packs for their fuels - so there will be a difference.
I had an ex Police T5 a long time ago. I used exclusively Shell V-Power. Around North Notts I used to get reliably 22-23mpg. I filled up in London and got 18mpg. I mentioned this to my friend who worked for Shell. He wasn't surprised. He said stations in London were getting lower grade Iranian feedstock, and stations in North Notts higher grade North Sea feedstock. Needless to say it wasn't cheaper in London....