What is a major benefit of using biodiesel in diesel engines?

Using biodiesel in diesel engines offers a significant benefit in that it reduces greenhouse gas emissions. Biodiesel is derived from renewable resources, such as vegetable oils or animal fats, which tend to produce fewer pollutants compared to traditional fossil fuels when burned. This reduction in emissions occurs because biodiesel contains a higher oxygen content, which allows for more complete combustion, thereby minimizing unburned hydrocarbons and particulate matter that contribute to air pollution.

In contrast, the other aspects mentioned in the choices are less favorable. For instance, biodiesel does not inherently increase fuel prices—market dynamics play a significant role in fuel pricing. Additionally, the notion that biodiesel makes engines run louder is not accurate; in fact, many users report that biodiesel can lead to quieter operation in some engines. Lastly, while there are some instances where biodiesel could lead to injector clogging, this is typically related to the use of older diesel engines or undiluted biodiesel, which does not reflect the overall performance benefits of biodiesel in modern diesel engines. Overall, the environmental benefits of reduced greenhouse gas emissions present a compelling case for the utilization of biodiesel in diesel engines.