A fuel line pipe is a flexible hose used to transport fuel from one point of a vehicle to another, or from a storage tank to a vehicle. Another definition given is: fuel line pipes are hoses or tubing for holding liquid fuel or fuel vapor. This includes all hoses or pipes for refueling ports, connecting dual tanks and connecting carbon tanks to tanks. This does not include hoses or pipes routing crankcase steam into the engine inlet or any other hoses or pipes that are open to the atmosphere. It is usually made of reinforced rubber to prevent splitting and kinking. The following article shall focus on telling you what the fuel line pipe is made of.