Frequently asked questions

1What is NGV?
Natural Gas for Vehicles (or NGV) is a fuel that has become the best alternative for mobility. The aim is to replace conventional fuels with this one as it is more economical and pollutes less. It basically consists of methane gas (the same as the one used at home). NGV can be used in liquid form (LNG) and gaseous (or compressed, CNG).
2What is CNG?
CNG is natural gas in a compressed form, kept between 200 and 250 bar, to reduce volume and to store it in bottles for use as fuel in vehicles.
3Is CNG safe to use?
Natural gas it lighter than air (unlike the liquid gases of petroleum) and easily disperses upwards in ventilated vehicles, and so is very safe in terms of supply, sotrage and consumption.

CNG refuelling video
4What is LNG?
LNG is liquid natural gas, which undergoes a liquifying process that consists of cooling it to a temperature of about -160 °C, which reduces its volume by 600 times. It is one of the best alternatives for heavy transport vehicles.
5Is LNG safe to use?
LNG is odourless, colourless and non-toxic, it is stored in liquid form at atmospheric pressure. It is safe to use, although the low temperatures involved make it necessary to take specific safety measures when refuelling (gloves, mask, special footwear).

LNG refuelling video
6What are the benefits of using natural gas as a fuel?
Natural gas is a very competitive fuel from an economic point of view in comparison to diesel and petrol since savings of between 25% and 50% are possible, depending on the solution that is used.

Environmental and acoustic:
Consumption of NGV is less polluting because it reduces emissions of nitrogen oxide by more than 85% and particles by almost 100%, which are the main pollutants that affect human health, and at a global level it reduces CO2 emissions, the main gas causing the greenhouse effect, by up to 20%. What is more, natural gas engines produce up to 50% less sound and vibrations than diesel engines.
7How does a NGV lorry work?
Natural gas lorries can run on CNG or LNG, depending on the client's preferences. LNG has the advantage of permitting greater autonomy, but has fewer filling stations. Natural gas lorries can run exclusively with natural gas (dedicated) or have a diesel tank (dual fuel).
8What is a dedicated vehicle?
It is a vehicle that can only run on natural gas. Most dedicated NGV vehicles are made by the major international car manufacturers. Companies such as Iveco and Scania are now marketing this type of lorry.
9What is a dual fuel vehicle?
It is a vehicle that runs on diesel-natural gas, using 50% of each one during combustion. Dual fuel vehicles can run solely on diesel, so that it can still operate if there is no NGV station nearby. Nowadays, any Euro IV, Euro V or Euro VI diesel engine lorry can be converted to dual fuel.
10Do natural gas vehicles have any extra cost in comparison to a conventional one?
Natural gas vehicles have a major extra cost of between 25,000 and 40.000€ in comparison to similar petrol driven vehicles. However, this additional cost is offset by lower fuel costs, which permit savings of 25% when compared to diesel. The option of converting diesel lorries to Dual Fuel costs about 14,000€. A lorry can be converted to CNG-Diesel or LNG-Diesel; the cost of converting to to LNG is about 5,000€ more expensive because of the higher cost of the tanks. Conversion is the common option taken by companies that want to operate with GNV because the investment is lower.
11Where can I refill?
Click here to see a complete list of all the stations on the corridor.
12How long does it take to refuel a GNV vehicle at a station?
The filling time for a natural gas lorry is the same as for a diesel lorry.
13What models are available in the market?
There are currently a lot of vehicle models such as cars, vans, lorries and coaches that run on LNG/CNG, made by the largest and most widely recognised companies in the world such as: Audi, Fiat, Lancia, Mercedes-Benz, SEAT, Škoda, Volkswagen, Volvo, Iveco, Renault tracks, Scania, MAN, Solaris, Solbus, Van Hool, Vectia, etc.

Click here to enter the vehicle catalogue