I am a bit confused , are you saying its not what Tesco say it is ? Think there will be laws and regulations to make sure it isDoes anyone here really believe that a supermarket would spend that extra few pennies for a "premium" fuel which could potentially outperform a product from an established fuel development company like Shell?
They will buy the cheapest fuel they can get their hands on for as cheaply as possible to make as many pennies as possible from the mums with groceries and prams who pop in there after grabbing their weekly shopping - not giving a shit about fuel quality.
Anyone who thinks otherwise is really just kidding themselves.
Also heard too many stories about supermarket fuel being contaminated and causing damage as a result. I'm not prepared to play that game of Russian roulette.