Oxiclean, or one of the cheaper generics, is fine.Should using pure sodium percarbonate vs. oxiclean yield better results or should one expect about the same?
Even common washing soda (sodium carbonate) is fine.
The whole oxygen action is heavily overrated, IMO. It looks great on TV, that's about it.
Once the oxygen dissipates (from one to a few hours, depending on temp) washing soda is left over. "Oxiclean," depending on brand/source is already a mixture of sodium percarbonate and sodium carbonate (washing soda).
No need to add 100% percarbonate, unless you can source it as a great deal.