[net.auto] leaded/unleaded gas mixtures?

pgf (04/05/83)

	Someone on the net recently mentioned that one could
	increase the octane rating of gas from the pumps by mixing leaded
	and unleaded gas in your tank.  Does anyone know if that's right?
	If so, in what proportions should they be mixed?  How critical
	is the lead to the operation of older engines--- would it be OK
	to put super-unleaded in a car that normally takes leaded?

						Paul Fox
						( ...!houxm!pgf )
						

	These questions may all have been discussed on the net before, but 
	I just started reading.