Fuel suppliers in the 1990's stopped smaller garages refilling by demanding a minimum delivery of 1000+ litres, hence the demise of many independent garages filling stations. I reckon there are 3 or 4 big players for fuel in UK, no wonder we are paying by post code . I plan my longer trips around Costco sites saving around 10p p litre. We should just stop filing up for any fuel to give these people a jolt.