A Forum to discuss and publish information about compression-ignition engines capable of running on vegetable oil. Why are some diesel engines (older mercedes car, and stationary lister-type engines) better at running on Veg oil than others? What is the best engine design for burning veg oil? How do you design an engine to run on multiple fuels (some military vehicles can do this)? How do you design an engine so that it is very robust/reliable? All these topics are described and discussed in this forum. Before posting anything to the group, please have a good read of all the information on www.vegburner.co.uk