Anyone Made Biodiesel Before?

MrEDuck said:

It often takes two or three trial batches for every new batch of used oil you get. But financially it is definately viable, but I'm not sure about the $1/gallon price tag. But even twice that is still an amazing price.

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So best bet is to get as large of a batch as possible to save time/money? Or could you just get 10 small batches, mix it all together, then run the couple of trial batches to save on time?

If you will, please discuss your experience further. Nothing better than talking to someone who's actually done it.