Liquefied Petroleum Gas, (LPG)
also referred to as Autogas, is a mixture of gases, the foremost
being propane. It is a by-product of the oil refining process
and is also found as an associated gas in natural gas (methane)
fields. Over the past few years it has gained increasing support
as an environmentally friendly automotive fuel, both in reducing
global warming and improving air quality, particularly in towns
and cities where vehicle emissions cause specific pollution
problems.
Compared to petrol, vehicles
running on LPG emit around 12% less Carbon dioxide and around
30% less oxides of nitrogen (NOx), hydrocarbons (HC) and carbon monoxide (CO).
Compared to diesel there is around 70% less oxides of nitrogen
(NOx), with fine particulate emissions virtually eliminated.
Department of Health statistics show that particulates may be
responsible for several thousand advanced deaths each year and
contribute to an increasing number of respiratory health problems
such as Asthma.
With carbon dioxide being one
of the main causes of the Greenhouse effect the sense of changing
to LPG becomes obvious. LPG is particularly cleaner for cold
starts and short journeys, which account for about 60% of all
vehicle traffic and the majority of urban emissions.
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