National Biodiesel Day - March 18
Mon, Mar 18, 2024

National Biodiesel Day

National Biodiesel Day is an annual American holiday dedicated to biodiesel. This development is actively supported by environmentalists, as it uses already used oils for its production. As a result, environmental emissions are significantly reduced, and instead of the poisonous smell of conventional fuel, the air will have an aroma similar to that of deep-fried foods. It is celebrated on March 18.


Biodiesel is made from waste oils of vegetable and animal origin. They are treated with alcohol, resulting in a highly flammable liquid that can serve as excellent fuel for the engines of various vehicles.

The process of making biodiesel is called transesterification. It was designed by Patrick Duffy in 1853, even before the first engine was built. That is why it was not applied in practice and remained in the shadow of scientific achievements. Seven years later, the first internal combustion engine was introduced, which used fuel derived from oil refining.

Toward the middle of the 20th century, there was much debate about replacing conventional fuel with biodiesel, but environmentalists lost, and petroleum-based gasoline and diesel continued to march in the auto industry.

Interesting facts

  • Rudolf Diesel’s first diesel engine could run on peanut oil, but this feature was never developed. And the inventor himself did not intend to use oil as fuel.
  • Today there are different types of biofuels. In total, there are about 2% of vehicles in the world that run on this type of fuel.

How to celebrate

Learn more about biofuels at National Biodiesel Day. Consider its advantages and disadvantages.

Spread the word on social media. Discuss the idea of using biodiesel (or another type of biofuel) in vehicles.

When is National Biodiesel Day celebrated in 2024?

National Biodiesel Day is observed on March 18 each year.


Weekday Month Day Year
Monday March 18 2024
Tuesday March 18 2025