The FAA selected four unleaded aviation fuels yesterday for the first phase of testing at the agency’s William J. Hughes Technical Center. The goal is for government and industry to work together to have a new unleaded fuel ready for general aviation use by 2018. Shell and Total, with one fuel each, and Swift Fuels, with two fuels, will now work with the FAA on phase-one testing, which will begin this fall and conclude later next year. The FAA expects that the results of the phase-one laboratory and rig testing will lead it to select two or three fuels for phase-two engine and aircraft testing.