The Toyota Surfrider Camry Hybrid CNG shown in the Environmental Lifestyle in the Toyota booth at SEMA Show 2009. Natural gas is a gas mixture in varying proportions, which constitutes over 70% methane (CH4), while others may be in appreciable amounts as nitrogen., carbon dioxide and ethane (C2H8).
Vehicular Natural Gas or CNG acronym refers to a type of fuel for vehicle use considered economic and environmentally clean, now is a sustainable alternative in the world to replace the liquid fuel. Natural gas is a savings versus the use of petrol and / or diesel does not require costly refining processes and reduces operating costs.