High Quality Content by WIKIPEDIA articles! The Turboliners are a family of gas turbine trainsets built for Amtrak in the 1970s. The trains were powered by gas turbine engines and ran on diesel fuel. Some were equipped with third rail shoes to enable entry into the underground tunnels approaching Grand Central Terminal and Penn Station in New York City. Turboliner service originally started in the 1970s as an effort by Amtrak to update its fleet with faster, more modern vehicles. Since then, the trainsets have undergone several rebuilds with the latest in 2000. As part of a lawsuit settlement between Amtrak and New York State, no Turboliners are currently in revenue service and the partially refurbished fleet has been sold for scrap.