1. Rudolf Diesel’s original engine ran on peanut oil
Rudolf Diesel’s original engine ran on peanut oil. He wanted diesel engines to utilize biomass.

2. Biodiesel is cheaper
than petrodiesel in
many European gas
stations where it’s
sold.

3. Sources of Oil for Biodiesel
Grains (like corn)
Nuts (like peanuts)
Beans
Seeds (like Jojoba)
Algae

4. The carbon in biodiesel comes from the air, and so its combustion provides no net addition of carbon dioxide.
Fossil fuels come from under the ground, and so their combustion adds carbon dioxide to the atmosphere.

5. Emissions Benefits Lower CO emission than petro-diesel
Lower aromatic hydrocarbons
Lower particulates

6. Algae grown on sewage might be an economical source of biodiesel

7. Emissions Disadvantages
More particulates than gasoline.
More nitrogen oxide emission than gasoline or petrodiesel.

8. VW and some other makers of diesel cars claim that their engines can run on pure biodiesel.

9. Since biofuels have higher melting points than petrodiesel, some biodiesel equipped cars allow the driver to switch to biofuel after engine heat has melted it.