Premium/Super diesel

[andy2174]

I always used supermarkets fuel and I fill from Sainsbury and never had no problems.  I heard from a taxi driver  you tend to get more Miles from Petrol forecourt than supermarket forecourt. But I never noticed this. I think supermarkets fuel and other forecourt fuel standards must be same, as they must comply with British standard. I think the petrol forecourt must add additives to boost their fuel quality after delivery from the wagon. This is my opinion.

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I am pretty sure additives are added at the fuel distribution depot, prior to the tanker leaving, I very much doubt its carried out by forecourt staff, which are mainly shopkeepers and quite often are working single handed