There are many benefits to using biodiesel fuel. Biodiesel has virtually no sulfur content, and it is often used as an additive to Ultra-Low Sulfur Diesel (ULSD) fuel to aid with lubrication, as the sulfur compounds in petrodiesel provide much of the lubricity. It is cleaner-burning, biodegradable, non-toxic, and essentially free of sulfur and aromatics. This means a significant reduction of greenhouse gases and toxic air pollutants.

Biodiesel has much higher cetane ratings than today's lower sulfur diesel fuels. Biodiesel addition reduces fuel system wear, and in low levels in high pressure systems increases the life of the fuel injection equipment that relies on the fuel for its lubrication. Depending on the engine, this might include high pressure injection pumps, pump injectors (also called unit injectors) and fuel injectors.

Biodiesel gives more complete combustion thus increasing the engine's energy output and partially compensating for the higher energy density of petrodiesel.

The advantages of biodiesel can be summarized as follows:

  1. Biodiesel burns cleaner than diesel fuel and eliminates black smoke.
  2. Biodiesel burns more efficiently.
  3. Biodiesel cleans fuel tanks and injectors and helps engine run cleanly.
  4. Biodiesel helps engines to run smoothly.
  5. Biodiesel is not hazardous to the environment and the air that we breathe as diesel is.
  6. Biodiesel substantially reduces particulate emissions and air toxins.
  7. Biodiesel is biodegradable.
  8. Biodiesel is safe to store and has a high flash point.
  9. Biodiesel requires no engine modification and does not affect engine performance.
  10. Biodiesel can be blended with diesel fuel at any percentage.