Ok, got a question for you guys that run wvo with a 2-tank set-up and those that make biodiesel. If you process wvo to remove the glycerin and water and other goodies to make biodiesel and it's ok to burn, then running straight wvo in a 2-tank set-up still has all that junk in it right? So what harm would come by blending it in your tank? Forgive me, but after reading 'bout this stuff a couple years, still some grey areas. Thanks, Bill