QUESTION & ANSWER
What is Natural Gas?
Methane or natural gas is the utmost in environmentally friendly fuels: one of the most plentiful in nature.
In fact, Natural Gas does not contain any impurities, sulphur, lead compounds or aromatic hydrocarbons, resulting in extremely low levels of exhaust pollution without odour, particulate and combustion residue.
The chemical composition of Natural Gas causes much less production of CO2 compared to other fuels; it also reduces the formation of ozone in the atmosphere.
Refuelling / Fuel distance
How do you refuel with Natural Gas?
Refuelling a vehicle that runs on Natural Gas is done by connecting the hose of the distributor to the refuelling valve on the vehicle, generally located under the bonnet or close to the gasoline filler.
In a modern service station with weight-based refuelling systems, the time required for this is 4/5 minutes for a medium sized vehicle (80 - 100 litre tank).
There are various types of fillers on the market and they vary from country to country.
What's the fuel distance of a vehicle that runs on Natural Gas?
The fuel distance of a car that runs on Natural Gas depends on the size of the tank or tanks installed when it is changed over.
Taking the example of a vehicle that does 10 km/l when running on gasoline, it should have a fuel distance of about 230 km with a 90 l tank, which is the equivalent of 23 l of gasoline, when running on Natural Gas.
Safety
Are gas systems safe?
Products installed on vehicles in specialised car-workshops are homologated by the Ministry of Transport according to European standards.
All Landi Renzo products are also individually tested according to the demands of our quality system, which was certified to ISO 9001 in 1996 and to ISO TS 16949 in 2001: the latter is the Quality System used by the motor vehicle industry and has extremely severe quality standards.
Are Natural Gas tanks safe?
Tanks for Natural Gas are able to guarantee the highest levels of safety: in fact, they are all subjected to stringent testing, both at the time of homologation and during their working life.
The particular strength required to endure testing pressures of 300 bar and operating pressures of 220 bar means the cylinders are extremely resistant to impact.
The use of fully tested, extremely reliable components, the implementation of all methods during installation for the prevention of gas leaks, even in case of faulty operation, and the intrinsic properties of Natural Gas (high ignition temperature, ignition only possible inside a particular interval of mixing with air) are all factors that play an important role in favour of safety.
Natural Gas is lighter than air and so does not stagnate in case of leaks but is dispersed into the atmosphere without accumulating in the lower strata.
Opinions are also positive on an international scale.
Tests made by the most important institutes for safety throughout the world (Bureau Veritas in
A report by the Norwegian Bureau Veritas states that the risks connected with the use of vehicles powered by Natural Gas are no greater than the risks for vehicles that run on diesel.
Conversion
Which cars can be converted to run on gas?
All cars that run on gasoline with a carburettor system, an injection system or injection system with catalytic exhaust can be converted to run on gas.
Should you decide to go ahead and have a LPG or Natural Gas system installed on your car, you must check with a specialised car-workshop as to which type of system should be installed on your specific model of car.
What must the status of my vehicle be in order to change over to gas?
Good performance of gasoline vehicles and good overall maintenance are prerequisites for good vehicle performance when running on gas.
Vehicles must be in good overall condition if a LPG or Natural Gas system is to be installed, especially as regards its gasoline supply system and the maintenance of the ignition system, particularly coils, spark plug cables and spark plugs.
How long does it take to have a gas system installed?
The installation of a LPG or Natural Gas system is generally done at specialised car-workshops and takes a couple of days.
What difference is there in performance compared to petrol operation?
Modern LPG and Natural Gas power systems guarantee excellent engine performance and there is practically no change in how the vehicle drives.
The latest generation of LPG injection systems give rise to a difference of about 2% in terms of the vehicleÕs power when compared to gasoline, whilst a Natural Gas injection system gives rise to a difference of about 10/15 %.
After a gas system has been installed, can I still run my car on petrol?
If a LPG or Natural Gas system is installed, you can still run the vehicle on gasoline.
The driver can decide which type of fuel to use by simple pressing the changeover switch located on the vehicleÕs dashboard.
The simplicity of using a gas system is also guaranteed by the fact that, with modern systems, the vehicle always starts on gasoline and automatically switches over to gas after about 30 seconds, that is after optimum operation parameters have been reached.
The vehicleÕs fuel distance is practically double when a gas system has been installed as it can count on its dual fuel supply.
Benefits
What are the benefits of Natural Gas?
Firstly, there is the benefit in financial terms given the lower running costs of vehicles that run on Natural Gas compared to cars running on gasoline.
Natural Gas costs about 70% less than gasoline so it is possible to redeem the cost of the system quickly and then start saving money, even if the distances covered are not very high.
Secondly, there are the benefits for the environment as Natural Gas does not contain benzene or lead: the most harmful substances in other fuels, and particulate is not produced as a result of its combustion, one of the major causes of pollution in towns and cities.
Thanks to its environmentally friendly features, vehicles that run on Natural Gas can be used even when motor vehicle transport is restricted because of high levels of atmospheric pollution, if contemplated by local regulations.
The cost of a Natural Gas system
The cost of a Natural Gas system varies according to the type of vehicle that it is to be installed on: whether the vehicle operates with a carburettor, injection system or injection system with a catalytic exhaust.
It also depends on the type of system that is installed: this can be with a mixer, injection single-point or the latest generation, multipoint injection with electric injectors.
Installation and maintenance
Maintenance of cars that run on gas
Vehicles converted to gas require the same type of maintenance as those running on gasoline.
It is important to comply with the schedule of routine maintenance for the ignition.
Special maintenance is not necessary, we recommend following the maintenance schedule especially as regards the ignition and the electrics.
Every 15,000 km, check that the electrics work correctly, that connections have not oxidised and replace the spark plugs. For LPG systems, have your installer check that there is no oil or other deposits inside the reduction gear every 30,000 km: these could be caused by the variable composition of LPG.
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