Trying to compare Biodiesel, Veg Oil and LPG is a pointless exercise in truth. Obviously both Biodiesel and Vegetable Oil can run in diesel engines, whilst LPG only runs in Petrol engines.
However, there were certain factors that I wanted to compare between fuel types when I first looked at veg oil conversion, and these are fiscal and environmental. I can't claim the following is scientifically backed with impeachable data as it's made up but myself from snippets of information I was able to glean from the internet - a not always reliable source.
So with that said, take what you will from the below:
|Fuel Cost||Least expensive||Slightly cheaper than standard diesel||Cheaper than Biodiesel|
|Fossil Fuel Content||Most of it||A small part||None|
|Emissions||20% of standard petrol||Some, but better than LPG||Few, the best of the bunch|
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