I never believed supermarket fuel was different to ordinary petrol station fuel, but dont often get the supermarket fuel.
Other day got a voucher for 5p off a litre of Sainsburys fuel, so went and filled the Punto up. Its a 16v 1.2 Dynamic, always nippy little thing.
With the Sainsburys fuel, it felt flat and didnt want to rev, I was wondering if the plugs needed doing as I havnt touched the engine apart from oil and filter changes.
Any way filled up where I usually do and all was well again, can only put it down to the Sainsburys fuel!!!!
Just wondered if you would get less mpg from the supermarket fill ups.
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