Use of biodiesel can have a number of benefits including being domestically sourced with the potential to reduce dependence on foreign oil. It has also generally been shown to have lower CO, HC, C02, PM, and S02 emissions.
However, biodiesel has several drawbacks which has hampered adoption. This includes lower fuel economy, some cold-flow issues, concerns with clogging filters, and engine performance. NOx emissions are also typically increased, although not significantly. Agencies can play a significant role in adopting biodiesel which can increase the cost effectiveness of these fuels as well as having positive environment impacts. However, adoption is hampered by lack of information and resistance to change.
This paper summarizes the known advantages and disadvantages of biodiesels. A review of agencies was conducted to determine those who have incorporated biodiesel into their fleets and when available, what their experience was. This information can be used by agencies considering adoption of biodiesel or higher blends.
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