Re: Is supermarket fuel good enough?
All the pumps will also also have a sticker next to the nozzle confirming the EN/BS standards number that applies to the fuel.
The tank monitoring equipment in the garage will monitor the water content of the under ground tanks. Also, water and petrol don't mix, the petrol will float (or the water will sink) in the tank. The weights and measures people will also sample the fuel as well as ensure the pumps are callibrated correctly.
The only damage I saw in 5 years at working at a filling station was when people put the wrong fuel in their car and drove off without realising.
There were times when the wrong fuel was dropped by the tanker, but the internal controls and procedures would pick this up before we re-opened after a delivery.
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