LPG Conversion

An LPG Conversion as supplied and fitted by Tamar Country Cars is a high quality well engineered piece of technology. Most of us do not need to know exactly how the systems work. The following is therefore a non-technical guide to what you need to know.

An LPG conversion is simply a secondary fuel system for your car that enables it to run on Liquefied Petroleum Gas (LPG). The primary fuel system (normally petrol) is always retained. This means that the vehicle becomes dual or bi fuel so that you can run your car on either Petrol or LPG at the touch of a button.

Under the Bonnet

A second set of fuel injectors is fitted, these deliver the LPG to the engine in the same way as normal petrol injectors. A four cylinder engine will normally require four injectors, a six cylinder six injectors and so on. The injectors are fed with gas from a special pressure reducer and all this is controlled by an additional gas computer (ECU) linked to the vehicle’s own engine management system. This means that the vehicle still uses all its existing sensors for monitoring the engine requirements and adjusting the fuel delivery to give maximum performance, efficiency, economy plus low emissions.

LPG Filler Point

In order to re-fuel the LPG tank a filler point is added to the outside of the vehicle. This takes the form of a colour coded flush mounted cover approximately 75mm in diameter that can be opened to reveal the filler connector. The mounting position can be almost anywhere towards the rear of the car. If body mounting is not desirable then tow bar or chassis mounting brackets are possible. The LPG tank is the largest component in an LPG/Autogas conversion. Most tanks simply fit in the spare wheel compartment, (even if the spare wheel is under the car). All tanks are made in Europe, they are required to conform to strict EU standards and are made of high quality steel. There is no Legal requirement to carry a spare wheel. Please note LPG tanks are always quoted in water capacity and only fill to 80% of that capacity for safety reasons.

On the Dashboard

The vehicle will automatically switch to LPG when the engine temperature of around 40 degrees is achieved, this normally takes just a couple of minutes. For manual override a small switch & status unit is added to the dashboard. The light at the top indicates the fuel you are using (red for petrol, green for LPG) and those on the bottom indicate thefuel level status. Pressing the centre of the button switches between fuels.

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