Liquefied Petroleum Gas ( LPG )
As An Automotive Fuel
Autogas is the term generally used for Liquefied Petroleum Gas (LPG),
when it is used for the propulsion of road vehicles. It is obtained as
a by-product of the distillation of oil from crude oil and from “wet”
North Sea gas. It is produced in large quantities. A surplus, (to increase
over the next 20 years), of approximately 4 million tonnes per annum is
currently available from the North Sea.
When the gas is pressurised to approximately 7 bar it becomes a liquid and it is in this form that it is pumped into your tank. Compared to petrol, Autogas has a higher octane content (see RON method – Super grade petrol 98 – Lead free 95 – LPG over 100 octane).
Advantages over other fuels:
- Autogas as a fuel, is pure gas and is not subject to a cocktail of
chemical additives like petrol.
- The environmental benefits are clear; not only is carbon dioxide
output reduced so particulates are virtually eliminated.
- Because it is already in gaseous form when it enters the combustion
chamber, Autogas burns more efficiently than liquid fuels.
- The life of the engine is extended as a result of the absence of
acids and carbon deposits.
- Autogas, unlike petrol, will not dilute the engine oil, thus increasing
engine protection between services.
- Unlike diesel, you do not have to adjust your driving style. Cold
starting is no problem.
- Engine performance is almost exactly the same as with petrol.
- Autogas eliminates the possibility of theft once in the vehicle,
this problem costs companies millions every year and is set to rise.
- Its weight by volume is half that of water.
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