Which resource is most commonly used for producing biodiesel?

The most commonly used resource for producing biodiesel is canola oil. Canola oil is a favored choice due to its favorable fatty acid profile, which leads to a high-quality biodiesel that performs well in various engine conditions. Canola is also widely cultivated, resulting in a more stable supply and often lower production costs compared to other oils.

While sunflower oil, peanut oil, and vegetable oil (which can include a broad range of oils) can also be used for biodiesel production, canola oil stands out in many biodiesel manufacturing processes due to its efficiency and availability. The characteristics of canola oil, such as its low level of saturated fats and high level of unsaturated fats, contribute to better combustion and lower emissions, making it a preferred option in biodiesel applications.