[Keith True]

There is also a story about it being named Phillips 66 because it was the 66th attempt at a formulation.I had read the naming after the octane in an article by the Conoco oil company about the progress of gas refining over the years.Werner,lead was not in widespread use at the time of the A either.I won't say it was non-existent,because it was being experimented with.I have the first gas pump that dispensed leaded gas in my town.It was right after the war,and the store owner told me that his first load of leaded gas went sour before he could sell it all.The old folks didn't like change then either.Some had the idea there was metal in their gas.The only plus I see to it is that it does keep very well.