That topic has been covered over and over again in a number of threads going back four or five years.
Up above is a 'search' function. Type in bio or veggie or vegetable oil or bar lube. You will get more reading than you could imagine as bar lubrication is central to all of us.
I'm redirecting you to those threads because the hundreds of guys who contributed to those threads did so when the topic was hot, and are less willing to repeat themselves. The information hasn't changed. The result in this thread would be a highly diluted, lightweight version of what's already been done.
Please, don't feel you're being turned away. You're a noob here, and we welcome you, Timber12. But your questions should be started with a casual search of existing threads, using key words. If you have questions unanswered, rekindle those threads and ask the question there. Every single person who has contributed to that thread will be sent a notice, and they will all be there to answer your question.