There are 0 ill effects from using WELL MADE biodiesel. As long as you make a quality product you will have no problems. I've been making and using bio for over 6 years without any problems. You will need to mix with dinodiesel in the winter months if you live in a cold climate. All Ford diesels after 1994 have bio compatable fuel lines already, so unless you buy a pre-94 your good to go!

If you need any help just post up in this forum. We have lot's of people that are willing to help.