The Guys at Parley's Diesel Performance teamed up with Graydon Blair of Utah Biodiesel Supply show you the necessary ratios of oil, methanol and catalyst for Biodiesel production on a small and a large scale. <br /><a class="link" rel="nofollow" href="http://www.parleysdieselperformance.com">http://www.parleysdieselperformance.com</a>