'The World Has Finally Stopped Using Leaded Gasoline. Algeria Used The Last Stockpile'

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@Mustangman

And it is so highly regulated, it is very, very difficult and expensive to change anything,

We had a long discussion of this 11 years ago:

Help Ed Build His Plane

This week on Car Talk, we heard from Ed in Pennsylvania. (You can hear the call right here.) He's got to choose between two engines. Big deal, right? Except that this engine is going in a plane Ed is building. From scratch. No kidding. (Who screens these calls, anyway?) Should he go for the tried-and-true airplane engine, or save $10,000 and opt for a Subaru engine? And, is this really the right place to save a few bucks? What would you do, if having your engine stall might mean a cras…