<br>There are at least three methods to run a diesel motor on [biofuel](https://www.marketscreener.com/quote/stock/MISSION-NEWENERGY-LIMITED-178469/company/) utilizing veggie oils, animal fats or both. All three are used with both fresh and secondhand oils.<br>
<br>1. Use the oil simply as it is-- usually called SVO fuel (straight vegetable oil)
