Taxi cab drivers are rushing into stations to switch their car fuel from gasoline to LPG. Currently the price of the LPG /per gallon is 1/3 of the gasoline price.

http://www.taipeitimes.com/News/feat...03282009/print

Related topic:
Assessment of reducing ozone forming potential for vehicles using liquefied petroleum gas as an alternative fuel
http://www.sciencedirect.com/science...8301e87d861f46

The subsidy to debase the price of LPG
http://epr.epa.gov.tw/query_en/KO104...DocNo=99977395