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LPG is a part of alternative fuels intended to take more and more important parts in the energy consumption for the automotive. The number of LPG vehicles is in constant growth (first or second mounting).

Indeed, to run with LPG you aren’t obliged to buy an already equipped new automotive. You can very well install a LPG kit on your current vehicle.

All countries aren’t equal regarding use of LPG vehicles. Italy, Poland, Turkey, Ukraine, Australia or still South Korea are early, but the increase of prices of the traditional fuels and the ecological awareness are so many arguments in favour of the LPG

LPG assets:

Economic assets:

LPG remains all over the world one of most cheaper fuels in the purchase.

Of more, this fuel arises partly from the extraction of natural gas fields. Thus less dependent on the fluctuation of the oil barrel price.


Ecological assets:

Europe decided to establish maximal limits of pollutant fot vehicle in order to reduce the atmospheric pollution bound to road transports. This norms “Euro” fix this limits. They will be more and more severe.

Emissions concerned for the ratification of light vehicles in Europe : NOx (Nitrogen oxides), Particles (only for Diesel), CO (Carbon monoxide), HC (Hydrocarbons no burnted). The combustion of LPG doesn’t produce any particles and limits significantly CO2 emissions and Nox (responsible of respiratory diseases).

LPG is far below all the values currently required an which will have to be applied from 2014 (Euro 6). NOx emissions are 20 to 30 times lower than on diesel, and until 10 times lower than gas emissions. A gas vehicle transformed in LPG, reduce by 12% CO2 emissions and by 68% NOx emissions of the engine.


LPG is a real virtuous energy


CO2 emission by type of fuel:

emissions CO2


Other assets of LPG:

  • A LPG vehicle benefits from a green pastille, which  allows to circulation even during the days when the limitation of traffic is imposed (in the case of pollution in a lot of cities)    
  • Combustion of LPG fuel doesn’t leave scale : the engine doesn’t get dirty, to the advantage of the longevity of the mechanics
  • Driving comfort is improved thanks to the flexibility of the engine and the decrease of noice

 Sources CFBP and www.developpement-durable.gouv.fr


Functioning of a LPG vehicle

Today we mainly find LPG installations on engines gasoline.


 LPG vehicle

LPG circuit


Gasoline circuit

1 – LPG filling

2 – LPG tank : the toric form permits to be put at the place of the spare wheel

3 – LPG canalization

4 – Injectors or infoectors rails specific for LPG

5 – LPG or ECU calculator  ; it adadt the information from the gasoline calculator to  manage gasoline delivery


7 –  LPG gauge and commutator : the gauge indicates the LPG nevel remainder in the tank and the commutator allows « to pass »  from gas to LPG

1 – Gasoline filling

2 – Gasoline tank

3 – Gasoline canalization

4 – Gasoline injectors

5 –  Gasoline calculator : it receives a lot of information from engine  which manage the gasoline injector 



Quantity of vehicles using LPG in 2012:

  • In France = 257 000
  • In Europe = 6,7 millions
  • In the world = 21 millions




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