I have a couple of gallons of underreacted bio, just curious if I can just dump it back in my container of WVO and reprocess it in with another batch?

OK, the above post was done on some small batches in 2 liter bottles, which is why I was asking about the reprocess. Well, now I have finally dried a sample of the first 30 gallon batch in my processor and performed the Warnqvist test (3ml in 27ml methanol) and it clouded up and overnight dropped out about .8 ml biodiesel. Now my question is how do I reprocess this batch or could the problem lie elsewhere? My oil is from a couple of different sources (chicken wing place, fried fish place), both of these sources titrate fairly high - my titration for the entire batch of oil was 14 with KOH. Please somebody - help, I got 30 gallons of stuff I am concerned about putting in my car.