LPG, which stands for Liquefied Petroleum Gas, is a convenient energy source used for many purposes, including heating, cooking, as well as vehicle fuel.

An LPG conversion is taking a normal petrol-powered vehicle and adding a secondary LPG vehicle fuel system. These dual-fuel LPG systems allow an LPG vehicle to operate on either LPG or petrol. The petrol tank remains in the LPG vehicle. The driver can switch from gas to petrol or vice-versa.