What is LPG Gas?

LPG  – liquefied petroleum gas is a hydrocarbon fuel comprising propane, Butane or propylene, either separately or as a mixture of any of them. The gas can be liquefied under moderate pressure. The liquid will expand to approximately 270 times its volume when it is allowed to revert to vapor. This feature enables L.P. Gas to be stored as a compact liquid but be burnt as a dry gaseous.

For automotive use , the product is similar to the L.P. gas used in domestic, commercial, industrial and leisure applications. In addition its specification is controlled to insure constant vehicle performance with clean, smooth combustion under all driving conditions.

L.P. Gas is non toxic, non corrosive, free of lead and heavier then air. It is produced by refinery fractionation of oil or is stripped from naturally occurring natural gas. There is a plentiful supply of L.P. Gas in Australia   

What about Safety Aspects?

The use of LPG in vehicles is controlled by state government regulations and national codes. There is substantial, practical evidence that L.P. Gas powered vehicles are equally safe, if not safer overall, then those with petrol systems. The tank is a strong pressure vessel and can withstand collisions with minimal damage. It contains a device to prevent accidental overfilling. In all states, stringent requirements apply to all aspects of L.P. Gas storage, handling and installation.

How is Changeover Made from L.P. Gas to Petrol in a “Dual-Fuel”System?

Simply press a selector switch on the dash for uninterrupted change of fuel. This world NORMALLY be done when the vehicle is stationary and with the engine at moderate revolutions per minute.

To insure petrol carburetor components remain lubricated, operation on petrol once each week is recommended. [This recommendation does not apply to EFI engines.

The change from petrol to normal L.P. Gas usage requires a few second pauses in a natural position on the switch, to allow consumption of the small amount of petrol in the carburetor. This step should be performed ONLY when the vehicle is stationary.

Is much of the Vehicle Manufacturers Equipment Altered?

 Normally not especially when the conversion is to ‘‘duel- fuel.’’ All vehicle emission controls, sensors, catalytic converters and computer models must remain intact and without interference.

Does L.P. Gas Operation involve some Loss of Power?

When compared with sugar grade petrol the answer is ‘‘YES.’’ But the difference is rarely noticeable. However, L.P. Gas vaporizes completely before it enters the engine, resulting in smoother application of power across the range of operating conditions.

What Fuel Consumption can be Expected?

Over economic is true criteria. liter for liter, L.P. Gas produces less energy out put than petrol. Up to 10% more L.P. Gas by volume is used to travel a given distance