I buy bio from Healy BioDiesel in Sedwick, KS. Ben Healy collects used cooking oil from just about every restraunt around including all Wendies stores in Eastern Kansas. He does a great job and keeps his price about $.30-.50 cheaper then the cheapest pump in town. Back several months ago when diesel was over $4 a gal. he kept is price over a dollar a gal cheaper. Great guy to do buisness with.