<a> oakley radar </a> Roush is the name of the first dedicated propane-powered F-150 pickup truck. With complete durable Ford truck parts and also with a variety of Ford truck accessories, Roush has an advanced liquid propane injection (LPI(TM)) system. The Roush F-150 LPI(TM) is designed and manufactured to operate solely on propane while providing the same horsepower, torque and drivability of an F-150 equipped with a gasoline-powered 5.4-liter, 3-valve Triton(TM) V-8 engine.