Mike
In response to your original question and Kens Data Sheet link, yes it is a detergent and will work in the normal way by wetting out.
Surfactant is Surface Active Agent and works with dwell time, agitation will shorten the dwell needed but hot water will undoubtedly make a big difference.
I apply all my presprays hot, they work better.
On the subject of cleaning pies it's important to realise they are a convenient way of explaining the differnet ways soil is removed BUT are not technical laws where one could apply a formula.In other words treat them as a guide only.
Cheers
Doug
Cheers