The biodesiel fuel

Today we ran out of sodium hydroxide, so poured a liter of vegetable oil into a 2L bottle to get ready for tomorrow. We cleaned up the room and tomorrow we will make more fuel. I think we are getting close! It is so exciting to be doing this project. I researched on how to know when the fuel is ready.  You must pour 150 ml of the biodesiel into a 2L bottle. Next you must add 150 ml of water ( it must be in room temperature) into the bottle. Shake the 2L bottle violently for 10 seconds. Then let the bottle settle. If the fuel and water separate then the fuel is ready.
This is the website:
http://www.ehow.com/way_5348969_homemade-biodiesel-fuel.html