LPG is colourless, odourless and heavier than air. A chemical is added to give it a smell like rotten cabbage, so that even a very small leak can be easily detected. LPG burns readily in air and has an energy content similar to petrol, which makes it an excellent fuel for heating, cooking and for automotive use.

LPG Autogas is specifically design for use in a vehicle and can contain both propane and butane. The LPG autogas specification (or mix) is governed by the National Fuel Quality Standards Act 2000 and the Autogas Determination 2003.