If you have a pre-RoHS rad, vinegar is fine in short term usage (30 min at a time tops). Post RoHS rad shouldn't see vinegar at all. The flux is a totally different kind of flux and is water soluble, hot water is all you should use.

To figure out which you have, there should be a sticker or some type of documentation stating it is a RoHS compliant product. Everything made by TC these days is RoHS compliant from my understanding.