When I started this thread a year or two ago I thought it would go very slow, and it did for a while. The news clips often had months between them. The subject of which fuel or equipment is going to replace 100LL is heating up now though, and the pace has gone to about 5 articles a week from various sources. So, to keep this thread from being inundated by news clips I am reading all of them and only clipping those which say something important. The following story does not say anything terribly important, but it indicates some of the parties who are involved in the decision to make the change. FAA and EPA are probably going to make a deadline for the change in the next year. An ANPRM (advanced notice of proposed rule making) has already been issued. We are going to see some answer to the issue of discontinuing 100LL avgas pretty soon.

AOPA and GAMA talk with clubs about avgas solution

(AOPA 6/25/10) Now is the time to be looking at all avgas alternatives—not ruling any out—AOPA and the General Aviation Manufacturers Association explained to a coalition of type clubs representing aircraft with high-compression engines during a meeting in Dayton, Ohio, on June 19. AOPA President Craig Fuller, along with Rob Hackman, AOPA vice president of regulatory affairs, and Walter Desrosier, GAMA vice president of engineering and maintenance, met with the owners’ groups to discuss the issue. Prompted by the anticipated Environmental Protection Agency mandate to reduce or remove lead from aviation gasoline, the type clubs, including American Bonanza Society, the Cirrus Owners and Pilots Association, the Malibu/Mirage Owners and Pilots Association, the Mooney Aircraft Pilots Association, and the Twin Cessna Flyers, are worried about a possible transition to a lower octane fuel replacement that could reduce their aircraft engines’ performance...