Motor gasoline is a Hydrocarbon fuel used in internal combustion engine. Fuel used should be quality and benefit of traveling long distance. Motor gasoline is obtained from the atmospheric distillation of crude oil. And it is fraction of crude oil. Motor gasoline consists of carbon C5 to C12, which contains a mixture of various component namely, low aromatic naphtha (LAN), high aromatic naphtha (HAN) and some part of superior kerosene (SK). These LAN, HAN and SK are available in commercial market at low cost, which persuade to quality problem in excess. So quality preservation of fuel is very significant and vital which could be study using distillation and gas chromatograph technique.