Nearly 60% of air pollutions are from motor vehicles. It causes several diseases and increases the global warming and changes the climatic condition also. The major air pollutions are from the diesel engine due to several reasons. In order to overcome these problems the bio-diesels are used and due to the shortage of the fuels (diesel& petrol) the bio-diesel are used nowadays.There are several types of bio-diesel are there like jatropa, ethanol, methanol, HHO, LPG, etc., but in this project we have use the karanj oil as an alternative fuel. The performance and emission levels are calculated for the different blended ratios. The blended ratios are D100%, D+HHO, K100%, K+HHO, K25%+D75%+HHO, K50%+D50%+HHO, K75%+D25%+HHO .The influence of major engine performance parameters, such as the brake thermal efficiency, indicated thermal efficiency, fuel power, mechanical efficiency are calculated for each blended ratios. In this project the mechanical loading was used. The loading can be increased from no load to 16kg
Oxy-Hydrogen , Performance , Emission and Single Cylinder.