GM Whirlfire engine
…four RTS-II buses averaged 2.7 mpg‑US (87 L/100 km), consuming more than peer transit buses, which averaged 4.3 mpg‑US (55 L/100 km) on similar routes. Chrysler turbine engines, prototype contemporaneous engines with comparable levels of development US 2972230, Conklin, Emmett D.; Flanigan, Eugene E. & Ricketts, James M. et…