It is still under dilemma, whether bio diesel is good or not. It is considered to be a good and evil one. Good in the seems cost effective but we can’t depend fully on this source. Most people in United States are addicted to oil. In particular, America is dependent of foreign oil from the Middle East, but there must be, as we have many options and how to increase the production of bio-diesel for trucks and ethanol for cars, we are on track to kick the habit. As per the analysis, the production of bio-diesel during 2004-05 is 25 million gallons more than 75 million gallons and is expected to double again by the end of 2006. This is one of the most serious crises they are facing because of the incentives and efforts of the north Midwest to grow their own fuel. One problem with bio-diesel is a petroleum-based diesel fuel, is also why the issue of price spikes and supply outside of the growing season, which can cost 20 to 35 percent or more, if farmers have a bad season, it could be even more difficult. Also bio-diesel must be stored in tanks heated and is therefore, subject to price spikes for natural gas. So there is both good and bad of bio-diesel, but there is no doubt, a way to help breaks America’s dependence on oil from the Middle East. Did you know that Willie Nelson, the singer has his own brand of bio-diesel, which is used by truck drivers and sold in California and the Midwest? Some truckers also called Bio-Willie after the mark of Bio-Diesel Fuel. The passage of the Energy Policy Act of 2005 bio diesel usage has been increasing in the United States. Also bio-diesel must be stored in tanks heated and is therefore subject to price spikes for natural gas. So there is both good and bad of bio-diesel depends on the usage limits.