What Organic Products Can Be Used to Make Biodiesel?

One of the interesting aspects of biodiesel fuel production is that it made from, well basically, things we could eat, find out more here.

And what are some of the challenges with using the organic products for biodiesel?
Biodiesel is made from the virgin vegetable oil that is derived from plants like sunflower seeds, rapeseed, soybeans, palm oil and even algae. In addition to these oils, biodiesel can also be made from waste vegetable oil such as that from restaurants. Yes, you can make biodiesel from the oil that has cooked your french fries you got at McDonald's!

Those who make their own biodiesel can save a lot of money and prevent a lot of waste if they buy waste vegetable oil locally from some restaurants.
It is interesting to note that farmers can make their own biodiesel but at the same time they may be growing the crops that will used to produce commercial biodiesel.
It is possible to run straight vegetable oil (SVO) in diesel engines, but there are a few reasons why this is not a good idea for the long term. First of all there are several modifications that will need to be made to your engine to enable the running of SVO.

One of these modifications may be adding a tank that carries petrol in addition to the SVO tank. The petrol acts as a thinner for the SVO because SVO by itself has a higher viscosity than diesel and needs to be thinned to start the engine. The petrol mixes with the SVO to act as a thinner so the engine can be started.

One of the problems you will have with biodiesel if you live in a cooler climate is gelling. Biodiesel will gel more readily than petrodiesel. One way to get around this problem is to blend petrodiesel into the biodiesel. Successful blends are 20 to 50 % biodiesel and the rest petrodiesel.