In the recent years because of fluctuating prices of petrol in the international nnarket, donnestic car users particularly business families, nniddle class families are buying diesel cars. As a result the level of suspended particulate matter and pollution in general is on the rise again. The honorable Supreme Court on July 1998 gave a ruling, which made it compulsory for all public transport vehicles to use CNG as the source of fuel which had given very good results and has lead to drastic reduction of pollution in the capital region of Delhi. This paper is a modest attempt to examine whether domestic car users are ready to switch over to this green fuel.