I worked as a Fuel tanker driver for 10 years, I no that the depot I worked from was owned by BP but Shell, Morrison�s and Sainsbury�s also loaded from the same depot and tanks. My depot was in the Midlands, in the North West it was the other way round, i,e. Shell owned the plant and BP loaded there. Other fuel companies do the same, I recon you cannot say A is better then B or C because it more that likely comes from the same place, We started using F1 fuels and have never had a problem since. I no it costs more but having been a tanker driver and seen what�s in the tanks I don�t risk it. For a start all drivers always empty Derv into the Derv tanks first then empty the Petrol last. This practice is so the pipes on the tanker are then cleaned by the Petrol to remove all Derv from pipes. But it always puts Derv into the Petrol tank, how much depends on the tanker driver, the pipes connecting the tanker to the tank at the fuel station are 15 foot long and 4inches wide, and hold approx 5 gallons there very heavy and should be lifted and drained to remove as much Derv as possible. (you can never remove all Derv before emptying the Petrol). But I no in practice that did not happen, the driver just swopped pipes so a full length of pipe with Derv then goes into the Petrol, Most tanks are underground and made from steel and always have condensation in them so you get water in the fuel, That�s why its a must to use a water removing funnel. Some Fuel station even gave the driver a tip and asked to him to put standard fuel in the super tank. (Increase there profits) There are lots of other reasons I would not use standard pump fuel in a racing engine but that�s for another time.
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