When diesel was much cheaper than gasoline, everybody went to buy diesel engine vehicles. But the soaring prices of crude oil in the world market and the increased demand for diesel have significantly increased diesel fuel prices, especially in July 2008. While it is becoming cheaper now, no one really knows if diesel prices will stay at its current low price level. And so technologists, scientists and environmentalists have developed alternative fuel to fight the soaring cost of fuel prices including diesel and gasoline.
Biodiesel
Originally, the diesel engine was designed to run on vegetable seed oil or peanut oil. But since petroleum fuel was cheaper then, people have forgotten that diesel engine can run on these natural oils. Now, it is making a comeback. Biodiesel, as we know it today, can be soybean oil, animal fats, vegetable oil or recycled restaurant grease. The good thing is, any diesel engine can run effectively on B20 (a mixture of 20 parts biodiesel and 80 parts petroleum diesel). These natural oils are clean and biodegradable. Biodiesel has lower carbon monoxide, hydrocarbons and particulates emissions.
LPG (Liquefied Petroleum Gas)
LPG...