# Reliance of the fossil fuels throughout the world in industrial sector and transportation make these resources become extremely in demand today

Reliance of the fossil fuels throughout the world in industrial sector and transportation make these resources become extremely in demand today. As a result, the price of those fossil fuels becomes higher because of their restricted condition. Diesel and coal may seem to be terribly sensible fossil fuels but they square measure ecological threatening. The emission discharge from the fossil fuels is the purpose for unnatural weather change and gas pulverization.
therefore government all over the globe are forcing the employment of biodiesel which may scale backthe emission that been discharge within the air. biodiesel which area unit experimental modified from vegetable oils area unit primary substitution for original diesel fuels. however experimental testing by using totally vegetables oil in diesel engines was conduct and the result seem to be failing as a result of it higher viscousness. thus to produce a good biodiesel the combination of vegetables oils and diesel fuelshould follow the ratios that are created and also the method of combustion and fuel injection systemmust fully perceive. In this research, rice bran and sunflower were selected as the main substitute to be biodiesel because it was easier to find in the markets due to the popularity of these two sources as cooking oils.