Are older vehicles fitted with LPG as environmentally friendly?

Based on the results of the Federal Governments own test programs which indicate that tail pipe C02 emissions produced by older cars (pre 1993) fitted with LPG are still some 14% lower than their petrol powered counterparts.


Unless if these are GTO treated.... 

If you are considering converting your car into LPG... consider the following comparison chart.

Yes we can save the world.  ;-]

LPG for transport

By Nicolaj Stenkjaer, February 2010
Many Danish cars drove during the period 1960 - 1990 on LPG gas (Liquified Petroleum Gas) also known as the GPL, LP gas or auto gas.

LPG is a liquid that is a by product from the refinery processing oil. The reason for virtually no one is running on this fuel in Denmark today is that tax rules were changed in the 1980s. But there are still a few stations back offering LPG gas and in Norway there are approximately 25,000 cars that have LPG as a propellant.
Benefits of LPG cars are that ordinary cars relatively easily are rebuilt to run on LPG gas and there are conversion kits for ordinary gasoline cars.
LPG gas is not stored under high pressure, but only need an operating pressure of 10 bar which is very little compared the operating pressure of natural gas at 200 bar. The low pressure makes it easier to build tanks.
LPG vehicles have CO2 emissions levels like ordinary petrol cars and higher particulate emissions than natural gas, so there are no environmental benefit. Another problem is the explosion hazard, which is quite big.
Denmark has earlier had many buses running on LPG gas, but they are also moving away.

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Notes to ponder

NASA claims that the government could slow down worldwide global warming by cutting down on soot emissions. Studies by NASA show that cutting down on soot would not only have an immediate cooling effect, but would also put a stop to many of the deaths caused by air pollution. When soot is formed, it typically travels through the air absorbing and releasing solar radiation which in turn begins to warm the atmosphere. Cutting soot emissions would be an immediate help against global warming, as the soot would quickly fall out of the atmosphere and begin to cool it down.

Cutting back on soot emissions would buy us time in our fight against global warming. Soot is caused by the partial burning of fossil fuels, wood and vegetation. Soot is known to contain over forty different cancer causing chemicals, and a complete cut would offer untold health benefits worldwide.

Environmental conservation has always been a topic for lengthy discussions, but up until recent times, global warming and climate changes were vague subjects, with no hard proof. Not surprisingly, the previous lack of attention to these issues have created a very gloomy outlook on our future. So, considering all this, what could be the biggest contributor to climate changes through global warming? Transportation - the man-made iron horses, flying machines and sea monsters, so to speak.

The question we have now is how green is our transportation? The majority of the worlds' vehicles are fueled by oil (petrol, diesel and kerosene). Even if they rely on electricity, the stations used to generate this electricity use fossil fuels for power! Excluding vehicle manufacture, transportation is responsible for 14% of the artificially created greenhouse emissions, mostly carbondioxide.

Automobiles, trains and planes are all responsible for this problem, but cars are the highest impact-makers. They release approximately six times more carbondioxide than a plane and seven times more than sea vessels.

What is Air Pollution?

Air pollution is somewhat difficult to define because many air pollutants, at low concentrations, are essential nutrients for the sustainable development of ecosystems. So, air pollution could be defined as:A state of the atmosphere, which leads to the exposure of human beings and/or ecosystems to such high levels or loads of specific compounds or mixtures thereof, that damage is caused. With very few exceptions, all compounds that are considered air pollutants have both natural as well as human-made origins.

Air pollution is not a new phenomenon; in Medieval times, the burning of coal was forbidden in London while Parliament was in session. Air pollution problems have dramatically increased in intensity as well as scale due to the increase in emissions since the Industrial Revolution.