BI-Fuel Models

ALTERNATIVE FUEL TANK

NOTE: The descriptions and specifications contained here were in effect at the time it was approved for printing. Ford Motor Company reserves the right to discontinue models at any time, or change specifications or design without notice and without incurring obligation.

The liquid propane gas fuel system consists of the following:
^ liquid propane tank(s)
^ a fuel fill valve
^ an in-line fuel filter
^ LPG (Liquid Propane Gas) fuel lines

The CNG and LPG fuel tanks are refillable storage tanks requiring replacement only when damaged or upon failing an inspection. Both the CNG and LPG tanks are equipped with a non-serviceable Pressure Relief Device (PRD). A safety valve 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, whereas the LPG tank is of a welded steel construction. Both tank types are refueled through use of a fuel fill valve (located behind the fuel filler door) containing a safety valve that only allows one-way fuel flow to the tanks (the F-Series CNG can be vented through the fill valve). The CNG and LPG fuel tanks are connected to the fill valve by a steel high-pressure line (used on the Contour) or by a high-pressure hose.

The Contour has a single CNG tank having an operating pressure rating of 3000 psi with dual bracket mounting in the rear luggage area just behind the rear seat backrest.

The F-Series is supplied with either single or dual CNG or LPG tank configuration, which are bolted inside the forward area of the bed floor (may be mounted underneath rear bed on flat bed vehicles).

The LPG dual tank configuration uses hollow support tubes welded to both tanks that also serve as crossover tubes.

The CNG fuel tank used with the F-150 has an operating pressure rating of 3,600 psi. The LPG fuel tank is fitted with an 80% outage valve (used when refueling), an 80% auto stop/fill valve and an internal float device used to monitor the fuel level.

The F-Super Duty 350 is supplied with an LPG tank mounted to the LH frame rail behind the cab. An optional tank location is behind the rear axle.