The real reason this quest for unleaded fuel is going on is the NIMBY’s thought it would be a way to close airports. Now it seems that didn’t work out for them. In the mean time GA owners are forced to spend several dollars per gallon more for fuel, in order to satisfy an environmental edit that will have a negligible effect on the environment.
From Russ:
So far, the price of G100UL has been in the same range as 100LL and about 50 cents a gallon more expensive where both are available.