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Biodiesel 101

What is Biodiesel?

Biodiesel is a renewable, domestically produced fuel made from natural sources like new and used vegetable oils, animal fats, and recycled restaurant grease.

It’s designed to replace or blend with traditional petroleum diesel for use in all diesel engines and some turbines—no modifications required.

How is it used?

Biodiesel is commonly blended with petroleum diesel and labeled by its mix percentage:

  • B100 = 100% biodiesel

  • B5 = 5% biodiesel + 95% petroleum diesel

  • B2, B20, and other blends are also common

Why is Biodiesel Beneficial?

Cleaner-Burning

Biodiesel reduces harmful emissions like carbon monoxide, particulates, unburned hydrocarbons, and other toxic pollutants found in conventional diesel exhaust.

  • High lubricity helps reduce engine wear and prolongs component life

  • Improved combustion efficiency leads to better mileage and smoother operation

  • Natural cleaning properties help reduce soot and carbon buildup in engines

Proven & Reliable

Used in the U.S. for over 30 years, biodiesel helps meet emissions regulations without sacrificing engine performance or requiring equipment changes.

By sourcing and producing biodiesel locally, communities can cut transportation emissions, create green jobs, and reuse waste effectively.

Engine Benefits
Local Impact

For more information about biodiesel visit biodiesel.org

Washington State's Clean Fuel Standard

The Clean Fuel Standard is a WA State law that requires fuel suppliers to reduce the carbon intensity of transportation fuels, with the goal of reducing greenhouse gas emissions by 4.3 million metric tons a year by 2038.

Yale Energy Inc., as a WA State fuel supplier, is aligned with the Clean Fuel Standard as we work to supply local transportation with sustainable, lower-carbon biofuel, aiming to reduce greenhouse gas emissions in the State.

Washington State's Clean Fuel Standard