LPG is a clean and safe fuel that has a range of properties closest to petrol.
The main advantage is its low price (less than half that of petrol) saving about £800 over a year on a midsized truck mount. LPG reaches the engine in a pure gas form, resulting in improved combustion and increases engine life.  As a bonus LPG engines run more smoothly, ‘hum’s quietly’ and importantly for us NO SMELLY AND POISONOUS exhaust gases!