JME_V1_N3_A1 G. Balaji M. Cheralathan Journal on Mechanical Engineering 2249 - 0744 1 3 1 8 Biodiesel, Inedible Oil, Cost The use of vegetable oils as an alternative fuel for diesel engine is accelerated by the energy crisis due to depletion of resources and increased environmental problems. Biodiesel production is a very modern and technological area for researchers due to the relevance that it is winning everyday because of the increase in the petroleum price and the environmental advantages. It was reported that a diesel engine without any modification would run successfully on a blend of 20% vegetable oil and 80% diesel fuel without damage to engine parts. Edible and non-edible oils can be used for biodiesel production. As India is importing 44 percentage of its edible oil requirement and government policy of not to have edible oil for biodiesel production has led to the way for inedible oil research and development for biodiesel production in a massive way. The economics of existing oil price and different inedible feedstock sources for biodiesel production have been extensively investigated in this paper. May - July 2011 Copyright © 2011 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=1477