Originally Posted by editeur

Natural gas is not very suitable for cars. Some people here convert petrol engines to natural gas, there are conversion kits on the market with affordable price, and there are natural gas stations around. But while natural gas is cheaper it has higher octane number, higher combustion temperature and it wears down engines faster than petrol. Also it is (arguably) more dangerous, it has more chances to just blow up.

Natural gas is very good for heating, especially central heating, for cooking stoves, for many industries which requires high temperature. It is usually cheaper than masut. Also it is very ecologically clean fuel.