Depleting sources of fossil fuels have raised an alarm for automobile engineers to search for an alternative fuel which can be provided to the society by ensuring its abundance availability and at an affordable cost. Simultaneously, use of fossil fuels have become a major contributor in producing green house gases affecting the environment adversely and increase in global warming is taking place which is very alarming for all geologists and environmentalists and has become detrimental for human existence on earth. Abundance availability of Chlorella vulgar is algae and the blends of the oil extracted from it through chemical process are used for the experiment to determine its suitability for use in automobiles as an alternative fuel. © 2019 Elsevier B.V., All rights reserved.