BIO- FUELPolanga oilR.Mahendran1 S.Karthikeyan2B.E. Mechanical(Third year), M. Kumarasamy Collee !"Enineerin, Karur.Contact #o$%22&122'2%, Email ()$ mmmaheaero1'*+mail.com1Contact #o$ %,*'*1*1*%, Email ()$ karthikaims&'+mail.com2ABSTRACT The em-hasis in this -a-er is on e.-erimentally e/aluatin the -ossi0ilities o" usin 0io1diesel de/elo-ed "rom one o" the num0er o" non1edi0le oil seeds a/aila0le in(ndia. #on edi0le oilseeds tress such as neem, Sal, seemaroun0a, cotton,ru00er, and -olana (undi) ha/e an estimated annual -roduction -otential o" more than 2& mea tons, o" 2hich -olanacontri0utes 70 thousand metric tons. These oils ha/e a reat -otential to -roduce 0io1diesel"or diesel enine a--lication without any major harwar! moi"i#ation $ no %l!ning i& n!!!' The use o" straiht /eeta0le oil is restricted 0y some -hysical -ro-erties, -articularly their (io&ity. )ue to hiher /iscosity oil causes -oor "uel atomi3ation, incom-lete com0ustion and car0on de-osition on the in4ector and /al/e seats resultin serious enine "oulin, 2e in this -a-er "ind solution "or the 0etter e""iciency o" enine 0y means o" -olana oil as a 0io1diesel !)ual to that o" *!tro-i!&!l "u!l. Tran&!&t!ri"i#ation has 0een re-orted to 0e one o" the most relia0le and commonly used techni5ue to -roduce 0io1diesel "rom oil seeds .this -a-er also hihlihts a -art o" the e.-erimental acti/ities carried out on -roduction o" 0io1diesel "rom -olana oil ha/in hih acid /al/e in a -ilot -lant and its su0se5uent utili3ation in a sinle cylinder diesel enine 2idely used rural6aricultural sector o" the country. 0ased on the a/aila0ilityand -roduction -otential in the country,oilderi/ed "rom -olanaseeds 2as chosen to e/aluatethe -er"ormance and e.haust emissions characteristics o" a sinlecylinder diesel enine. I+TRO,UCTIO+- The emerin 2orld is runnin out o" "uel, since e/ery human is concentratin reatly on the 7need o" hour8 in this systematic en/ironment 2e hadto sho2 a reat care to the en/ironment to 0e "riendly,thouh the li5uid "uel may 0e in lack it9s the as 2hich has 0een re-laced,it istoo in the corner o" these scarcity 0y the sur/ey, the as -roduction as increased in 2&&: "rom *& to 11: mmt 0ut 0y the yearits ettin decreased to ;< mmt "rom the -roduction no2. The need can only 0e satis"ied 0y the /eeta0le and its oil, this -a-er is also one o" the "indins 0ut a reater domination than the other .The con/entional "uels 2hich 2e use no2adays create a lot o" -ollution so there is a search "or the eco "riendly "uel .=inally the ans2er "or the -ro0lem is the usae o" the 0io1"uel. the 0io"uel reduces the -ollution to a lare e.tent. T.E POTE+TIAL A+, C.ARACTER OF POLA+/A SEE, OIL- The s-ecies has 0een -lanted 2idely throuh the tro-ics >it is uncertain "rom 2hereit oriinates .it is 0elie/ed to 0e indienous to (ndia. Malaysia, (ndonesia and the -hili-hines.it ro2s in areas 2ith 1&&&1