FAQ

Driving on gas will not damage the engine if the throttle is correctly installed and correctly tuned.

On some engines, where the inlet and exhaust valves are not equipped with hydraulic expansion joints, it is also reasonable to use an additional lubrication device. This oil, which is sprayed separately into each cylinder with the gas, improves the thermal conductivity of the valves, prevents valve stalling and prevents valve seat wear.

On older cars, which have some oil consumption and the engine lubricating oil gets into the cylinder, the additional lubricating oil also prevents burnt engine oil residue on the valves. We offer the fully electronic Prins ValveCare device as an add-on: http://www.prinsautogas.com/en/products/valvecare/valvecare.html

The liquid gas tank can be installed in a toroidal shape in place of the spare wheel as a first step. If you don’t have or don’t want to use a rear spare wheel socket, you can also fit a cylindrical tank behind the rear seat or in another suitable location.

You also need to take into account that LPG tanks fill up to 80%.

A LPG unit can be fitted to most petrol cars, and can also be fitted to modern direct injection engines if such a unit has been developed by the manufacturer of the gas equipment. Direct injection engines are available for Audi, VW, Seat, Škoda, Opel. It can and does make sense to install a gas filler for diesels in heavy vehicles such as trucks, buses, quarry trucks, etc. The general rule for a diesel installation is that the average hourly or 100km fuel consumption should be at least 25L.

The first difference is in the chemical compounds. Natural gas is methane CH4 – containing at least 97% methane – and when used in a car, it is called CNG (Compressed Natural Gas) and is stored in the tank at a pressure of 200 bar. LNG is less common, as is natural gas, but in liquefied form, i.e. the gas in the tank maintains a low temperature of -162 °C. In Estonian, this gas is called liquefied natural gas. Natural gas is extracted from natural gas deposits in the ground.

CBG is biogas and LBG is liquefied biogas, produced from biological waste. Octane number 130.

The most common is LPG, which stands for Liquefied Petroleum Gas.

Most often it is simply called liquefied petroleum gas. Liquefied petroleum gas is composed of two components: propane C3H8 and butane C4H10, in a ratio of typically 55/45% in summer and 60/40% in winter, respectively, which may also vary from region to region. Octane number 99-102.

Liquefied petroleum gas (LPG) is the closest alternative fuel to petrol. With LPG, the driving performance of the car is unchanged. Mostly retrofitted with LPG LPG cedamets (cheap and quick investment) Read more: differences between CNG and LPG Read more.

A natural gas car, due to its octane rating, needs an ignition adjustment to maintain the same driving performance. Unfortunately, it is not possible to fit an ignition regulator to all cars, as the car’s own control unit may start to work against it or detect the regulation as a fault. The range of a normal car on a single tank is between 150-200km, depending on the size of the tank and fuel consumption.

For accurate economic comparisons, use our savings calculator.

Natural gas tanks are always cylindrical in shape, so their positioning is relatively limited, and in most cases they must be placed behind the rear seat in passenger cars.

Driving on LPG increases fuel consumption by 20%, which must be taken into account when considering the savings, i.e. if a litre of LPG costs €0.77, the real cost of money equivalent to petrol would be €0.924€.

Natural gas is sold in kilograms – one kilogram of CNG is equal to 1.35 litres of petrol, so if 1 kg of CNG costs €0.77, the real equivalent price of petrol would be €0.57.

Since the introduction of lead-free petrol, the fuel does not contaminate any component in the engine. Engine oil lubricates the components that need lubrication in an engine.