What is natural
Natural gas is a mixture of hydrocarbons found in the ground independently
or together with crude oil. Its composition varies (depending
on where it is found), but its main component is "Methane"(CH4}.
The rest of the gas is made up of varying amounts of other gases
like ethane, propane, butane, and heavier hydrocarbons, plus Carbon
Dioxide, Nitrogen, water and traces of other substances. Natural
gas is a by-product of decaying vegetable matter in underground
strata. Natural gas is the cleanest burning fossil fuel; it can
help improve the quality of air and water,especially when used
in highly polluted places.
Malaysia is blessed with abundant
natural gas reserves. At 82.5 trillion cubic feet, these reserves
are two times the amount of oil, thus there is opportunity to
promote and diversify the use of the natural gas not just as a
power source in the industrial and utilities sector; but also
as an alternative fuel for vehicles. PETRONAS, through its wholly,
owned subsidiary, PETRONAS NGV Sdn Bhd , have been making NGV
available to Malaysian motorists through its expanding chain of
NGV outlets in the Klang Valley and other major urban areas in
FAQ's at bottom
of this page. For more info on NGV visit: IANGV
or Green Car Congress
What is NGV
NGV stands for Natural Gas Vehicle. They operate similarly to
traditional vehicles, but they use natural gas as fuel. Natural
gas can power existing cars and trucks by converting the engines
to a bi-fuel capability. To convert vehicles to natural gas requires
installing a tank, fuel pressure regulators, and fuel lines. Most
systems incorporate an electronic module which adjusts the engine
to maintain comparable performance levels with either fuel. Limited
production of dedicated natural gas engines and vehicles is under
way at motor vehicle manufacturers. Refueling stations use the
same natural gas as commercial facilities and residences. These
stations now provide compressed natural gas for quick-fill.
FAQ's at bottom
of this page
How a Natural
Gas Vehicle Work ?
1. Natural gas is compressed and enters the vehicle through the
natural gas fill valve (receptacle).
2. It flows into high-pressure cylinders located in or under the
3. In a bi-fuel NGV, a fuel selector on the dashboard permits
selection of natural gas or gasoline to act as the fuel for the
vehicle. A dedicated NGV operates solely on natural gas.
4. When natural gas is needed by the engine, it leaves the cylinders
and passes through the master manual shut-off valve.
5. The gas goes through the high-pressure fuel line and enters
the engine compartment.
6. Gas enters the regulator, which reduces pressure from up to
3,600 psi to near atmospheric pressure.
7. The natural gas solenoid valve allows natural gas to pass from
the regulator into the gas mixer or natural gas fuel injectors.
(Or, it shuts off the natural gas when the engine is not running
or when, in the case of a bi-fuel vehicle, gasoline is selected).
8. In a bi-fuel NGV, natural gas mixed with air flows down through
the gasoline carburetor or fuel injection system and enters the
engine's combustion chambers. In a dedicated NGV, natural gas
is injected into the engine's combustion chamber via specially
designed natural gas fuel injectors.
9. In a bi-fuel NGV, when the driver selects gasoline, the conventional
gasoline system is activated and the natural gas system is automatically
at bottom of this page
Presented below is an outline of the benefits that CNG offers:
Green fuel - Commonly referred
to as the green fuel because of its lead and sulphur free character,
CNG reduces harmful emissions. Being non-corrosive, it enhances
the longevity of spark plugs. Due to the absence of any lead or
benzene content in CNG, the lead fouling of spark plugs, and lead
or benzene pollution are eliminated.
Increased life of oils -
Another practical advantage observed is the increased life of
lubricating oils, as CNG does not contaminate and dilute the crankcase
Mixes evenly in air - Being
a gaseous fuel CNG mixes in the air easily and evenly.
Safety - CNG is less likely
to auto-ignite on hot surfaces, since it has a high auto-ignition
temperature (540 degrees entigrade) and a narrow range (5%-15%)
of inflammability. It means that if CNG concentration in the air
is below 5% or above 15%, it will not burn. This high ignition
temperature and limited flammability range makes accidental ignition
or combustion very unlikely.
Low operational cost - The
operational cost of vehicles running on CNG, as compared to those
running on other fuels, is significantly low.At the prevailing
price of fuel ,operational cost of CNG vehicles is 68% lower than
petrol and 36% lower than diesel.
FAQ's at bottom
of this page
& Legislations To Encourage Use of NGV
NGV is supported by the government
of Malaysia with incentives and legislation to encourage vehicles
owner to use NGV. NGV price is only 68 cent/litre equivalent of
petrol, is cheaper than other fuels. NGV conversion kits are exempted
from import duty and sales tax.
Reduction of road tax from existing levels:
* Monogas vehicle (NGV only) -
* Bi-fuel vehicle (Petrol & NGV) - 25% off
* Dual-fuel vehicle (Diesel & NGV) - 25% off
All these are major factors for
potential owners to consider when making their vehicle fuel choices.
However, what many owners may not be aware of is the safety record
of NGV vehicles. NGV vehicles safety record compares favourably
to other traditional fuels or alternative fuels available today.
This is due to the superior (and still improving) technology,
higher safety standards and the physical properties of NGV itself
which makes it as safe or safer to use than petroleum-based fuels.
Asked Quetions (F.A.Q) :
Natural Gas for Vehicles (NGV)?
Yes! It is natural gas under pressure in cylinders, placed in
your car boot compartment.
2. Can my petrol cost be really cut by half?
Yes! The price of NGV is only about half the price of petrol.
Petrol price is RM1.20 per litre while NGV price is 56.5 cents
per litre. So your petrol cost will definitely be cut by about
3. Will it affect my car's engine?
Not at all! NGV is a clean fuel. It makes your engine run cleaner
and quieter. So, definitely NGV can reduce your service maintenance
4. But is it safe?
NGV has been in use overseas since 1945. Today, more than 1,000,000
vehicles use NGV all over the world. And there has not been any
serious accident caused by NGV.
5. But what about the storage cylinders?
Unlike a petrol tank, the storage cylinders are so strong they
can withstand direct impact from a car speeding at 90 km/hr or
a small calibre bullet.
6. What about the gas inside?
The NGV inside is so much lighter than air, it just disappears
into the air quickly in case of leakage. It also does not ignite
7. Where do I refill NGV?
At any NGV outlet. Look for the NGV sign.
8. What about road tax for my car?
You get 25% deduction for your road tax. This clearly shows the
Government's commitment to NGV.
9. Can I use both - petrol and NGV?
Yes! You can use either NGV or petrol after fixing the NGV kit
in your car.
One last question. Is it environment-friendly?
Yes! It definitely is! No black smoke! No lead! It keeps Malaysia's
air clean and people healthy.
For more information on the above topic please call NGV Network
tel: 03-5161 0252/ 012-235 6252 or
email us at:email@example.com