LPG (Liquefied Petroleum Gas) is widely used as a domestic fuel for cooking, has its main content as odourless butane to which other gases like propane and ethyl mercaptan are added to give fowl smell in order to identify leakage. It is produced by converting petroleum into liquid form under pressure. Indane and Bharat Petroleum are the chief distributing agencies of LPG. LPG emits negligible levels of particles which diesel does and even those emitted are not as toxic as those emitted from diesel. It is an ideal cleanest burning alternative fuel.