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Ethanol and biodiesel allow people to burn a cleaner form of energy.

Mark Kennedy

There was a time when the world ran on petroleum fuels, or fossil based fuels as they’re called. It’s been a long time since anyone seriously discussed an alternative or produced something that could actually make a difference.

That day has finally come in the form of Biodiesel, and National Biodiesel Day celebrates the newest form of fuel that allows you to both drive with a clean conscience and surrounded by the amazing smell of French fries!

History of National Biodiesel Day

Biodiesel is an amazing substance that has the great quality of being made from old, used vegetable and animal oils.

It’s made by processing the oil with alcohol to produce a fuel that’s capable of burning and powering everything from a passenger bus to a heating unit, turning left-over oil to a powerful new way to get around town.

Biofuel isn’t really a new concept, at least the technology that makes it isn’t a new concept. The process, known as transesterification, was actually first done in 1853 by a man by the name of Patrick Duffy.

This was long before the first diesel engine was produced, and at the time there wasn’t a practical application for this new development.

That changed in 1893 in Augsburg, Germany, when Rudolf Diesel’s first diesel model was produced, and was running on pure peanut oil.

It’s worth noting that Diesel hadn’t intended his device to run on peanut oil, but when it was presented at the Paris Exhibition in 1900, it was done by request of the French government.

In spite of our initial statement, there have been discussions on the subject of plant based fuel to replace petroleum oils as early as the 1920’s and 1930’s. They just never made it into the mainstream, and certainly never managed to gain enough traction to cause the kind of movement we’re seeing today.

How to Celebrate National Biodiesel Day

The best way to celebrate National Biodiesel Day is to explore the technology that is Biodiesel. Look into local suppliers, how it’s made, and the impact it has on your environment.

You may be pleasantly surprised to discover that it’s easily available and will leave you with a clean conscience as you travel down the road to your destination.

Even better, there are conversion kits to turn any car into a biodiesel fueled vehicle, who knows, you may even decide it’s time for a change!

Facts About National Biodisel Day

Vegetable Oil Fuels Were Demonstrated Before Diesel’s Engine

Chemists carried out the first documented transesterification of vegetable oil in 1853, decades before Rudolf Diesel built his engine.

Patrick Duffy and others showed that reacting plant oils with alcohol produced thinner, more combustible “fatty acid esters,” essentially an early form of biodiesel, even though there was no practical engine to use them yet.  

Biodiesel Molecules Are Chemically Distinct From Straight Vegetable Oil 

Modern biodiesel is made by reacting triglycerides in fats and oils with an alcohol, usually methanol, in the presence of a catalyst to form fatty acid methyl esters (FAME) and glycerin.

This process lowers viscosity and improves cold-flow and combustion characteristics so the fuel can meet technical standards like ASTM D6751 and EN 14214 for use in diesel engines.  

Biodiesel Can Cut Lifecycle Greenhouse Gases by More Than Half 

When produced from common feedstocks such as soy oil, used cooking oil, or animal fats, biodiesel typically reduces lifecycle greenhouse gas emissions by 50 to 86 percent compared with petroleum diesel.

The U.S. Department of Energy attributes these savings to the fact that the plants or waste sources for biodiesel originate from contemporary carbon rather than releasing carbon long stored underground in fossil fuels.  

Tailpipe Pollution Changes, Not Disappears, With Biodiesel 

Switching from petroleum diesel to biodiesel blends generally cuts particulate matter, carbon monoxide, and unburned hydrocarbons from vehicle exhaust, but it can slightly increase nitrogen oxides (NOx) in some engines and duty cycles.

Regulatory reviews by the U.S. Environmental Protection Agency found that a pure biodiesel (B100) fuel can reduce particulate emissions by about 47 percent while increasing NOx by about 10 percent, which is why engine calibration and after-treatment systems remain important.  

Used Cooking Oil Has Become a Major Industrial Feedstock

Recycled restaurant grease and used cooking oil once treated purely as waste are now important raw materials for biodiesel and related renewable diesel.

In the United States, the Department of Energy estimates that waste fats, oils, and greases account for roughly 10 to 15 percent of biodiesel feedstocks, reducing landfill disposal and helping improve the overall carbon intensity of the fuel.  

Biodiesel Production Is Tied Closely to Agricultural Markets

In many countries, biodiesel is produced primarily from vegetable oils such as soybean oil in the United States and rapeseed oil in the European Union.

Analysts at the International Energy Agency note that mandates for biodiesel blending can influence crop planting decisions and oilseed prices, linking transport fuel policy directly to farm economics and food-versus-fuel debates.  

Engine Compatibility Depends on Blend Level and Materials

Most modern diesel engines can run on blends up to B20 (20 percent biodiesel, 80 percent petroleum diesel) with little or no modification, but higher blends can interact with certain elastomers and older fuel-system materials.

Technical guidance from the National Renewable Energy Laboratory notes that biodiesel’s solvent properties can loosen deposits in fuel systems and that long-term use of high blends in older engines may require upgraded hoses, seals, and careful cold-weather management. 

National Biodiesel Day FAQs

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