LPG Conversion Process

What does an LPG conversion involve?
The conversion itself does not alter the car much: new equipment is added but very little of the existing equipment is changed or removed. All conversions will, however, include a dedicated gas fill point.

During most conversions:

A steel LPG storage tank is installed, usually in the boot but it can go under the floor in vehicles with enough clearance (e.g.; four wheel drives). This tank must be fitted with an automatic fill limiter (AFL) which ensures you cannot fill your tank past the safe fill limit of 80%. This is necessary as LPG requires room to expand with temperature changes.

A reducer is added. This converts the liquid gas into a gaseous vapour, as well as regulating the process.

For older cars a special air/fuel mixer is installed to ensure the correct amounts of LPG and air are mixed together during combustion.

For newer ones an lpg injectors are installed.

A fuel lock is fitted that lets fuel flow when the engine is running but shuts off the fuel supply as soon as the ignition is turned off.