The system is configured with LPG storage tank(s) optimized for the trade of the vessel. The LPG fuel tank(s) is loaded through dedicated bunkering lines, or in case of a LPG carrier reloaded from the cargo tanks. From the fuel tank(s), the LPG is conditioned and prepared as fuel. A system consisting of pumps and heat exchanger is used to supply the engine with a stable and reliable fuel flow, at the correct pressure and temperature. The LFSS is equipped with proven components, including the necessary return gas conditioning system. Due to need for high cleanness on the fuel there are installed proper filtering upstream and embedded in the system.