The WD40 one is $12.88 I think, at a hardware store. The Material Safety Data Sheets for both versions are interesting. First, the Jaycar one, which is actually based on INOX MX6:
http://www.jaycar.com.au/products_uploaded/NA1032_MSDS%20INOX-MX6.pdf

Here is the WD40 one:
http://www.wd40company.com/files/pdf/bluework13728956.pdf

Meanwhile CRC's Dry Glide sheet:
http://www.crcindustries.com/faxdocs/msds/3044.pdf

And their Power Lube with PTFE:
http://www.crcindustries.com/faxdocs/msds/3045.pdf

So, we find the Jaycar product is "less than 5%" PTFE powder, and there is no mention of PTFE at all in the list of constituents of any of the the other three. Frankly, this does not fill me with confidence in the performance of the latter items, so I prefer to go along with your choice, Gadge.

Last edited by grumpy; 20/02/15 08:44 PM. Reason: Add detail