Gas vs. Petrol

Difference Between Gas and Petrol Gas (LPG / Liquefied petroleum gas / auto gas) and petrol (gasoline) is…

Difference Between Gas and Petrol

Gas (LPG / Liquefied petroleum gas / auto gas) and petrol (gasoline) is poised of hydrocarbons and they are used as fuels in internal combustion engines of vehicles. In recent years there has been a move towards increased gas as a substitute fuel in vehicles. Both the LP gas as fuel oil is derived, so both are fossil fuels.


Gas (LPG) is used as a fuel in vehicles as well as in household appliances. The gas, which is used in vehicles, is mainly a blend of propane and butane. It can be liquefied under pressure, now preserved as a compressed liquid and is burned as an arid vapour in the engine. The gas is non – corrosive, free of the advance and has a high octane rating. To use the gas in vehicles, they must be converted to dual fuel or dedicated operation gas. In dual-fuel, the vehicle can operate in gasoline or other gases. A separate gas tank should be installed in the vehicle with the fuel tank. LPG and gasoline have slightly different characteristics of fire, but the motors can be mounted to use two different fuels without a problem. Dedicated gas vehicles have no fuel system of gasoline, markets therefore use only gas. This switch is expensive, but in the long run it saves money because the price of gas is much lower than gasoline. All vehicles can not be transformed to gas and to install the gas tank, substantial space is needed are some disadvantages.


Petrol is a liquid hydrocarbon fuel. Hydrocarbons like benzene and isooctane or toluene is added to petrol increase its octane rating. It is capricious and has a higher density than LPG.

The difference between gas and petrol

Whilst using vehicles with gas, fuel consumption is upper than that of petrol. Also, output of energy is lower in the gas compared to petrol. Though, gas is economical than petrol and this compensates for its high consumption. The combustion of petrol is fractional, ensuing carbon dioxide and other particulate matter in the emissions. Relatively gas is cleaner and less emissions than petrol. So, gas is more environmentally friendly and economical to use in vehicles than petrol. Nevertheless, people are still using petrol for their vehicles; the gas is less available than petrol in service stations. Although we expected that the gas is more efficient than petrol, it cannot be pragmatic except the locomotive design is optimized for LPG fuel.


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