Alternative Fuel Tank

WARNING: This page is about a different car, the 2004 Ford Pickup Heritage. However, it is still accessible from the selected car via links, so may be relevant.

The compressed natural gas (CNG) fuel tank is a refillable storage tank requiring replacement only when damaged, failing an inspection or when the expiration date stamped on the tank is past. The CNG fuel tank has an operating pressure rating of 24,822 kPa (3,600 psi). The CNG tank is equipped with a non-repairable pressure relief device (PRD) designed to relieve all fuel pressure within the alternative fuel tank if exposed to fire (tank replacement is required once the PRD safety valve has been released). The CNG tank construction consists of a metal liner reinforced with a resin impregnated continuous filament shell. The tank is refueled through the use of a fuel fill valve (located behind the ALT fuel filler door) containing a safety valve that only allows one-way fuel flow to the tank. The CNG fuel tank is connected to the fill valve by a high-pressure hose.