A STORAGE SYSTEM FOR A GASEOUS FUEL

Disclosed herein is a working machine comprising: a ground engaging structure for providing propulsion over a ground surface; a chassis mounted to the ground engaging structure; an operator cab mounted to the chassis; a gas engine for providing propulsive power to the ground engaging structure; at least one storage tank for storing gaseous fuel for the gas engine; and, a purge valve for removing gaseous fuel from the at least one storage tank.