MISUSE OF DOMESTIC LPG GAS??

My discussions are mostly related to India-but I request viewers through out the globe to "comment and discuss" for the exchange and sharing of knowledge.
The "RED COLOURED LPG CYLINDERS" are meant for domestic use, mainly for cooking at home. But, we find them used extensively by hotels, restaurants, road side vendors-who sell steaming idlis, dosas, vadaas and omelettes etc. even meals.
People use these cylinder to drive their vehicles. I am told that a car runs a minimum of aroud 200 kilometer plus on a single cylinder costing aroud Rs.320/-. The same car requires about 18 litres of petrol costig about Rs. 900/-. What an economy?? Special "lpg cylinders painted black" are available for this COMMERCIAL USE, BUT THE COST IS MUCH HIGHER, these are not available easily.
Welding,gas cutting work are also done with "DOMESTIC CYLINDERS" not the "INDUSTRIAL" ones. It is only, yesterday, I saw an advertisement for the famous-"HONDA" generator, that runs on LPG gas. In the ad-photo one red coloured "INDANE LPG CYLINDER" (with the usual blue regulator")is shown connected to the "HONDA GENERATOR". The "Indane" emblem is clearly seen on the cylider's photo.
I told this to one dealer, the reply was "This is India, saab chalta hai". Can some viwer do some thing in this respect?? dr.b.saraf@gmail.com