Ok, so describe the lube that is in them...as much as you are able.
If you squeeze a wad, does the lube come out like an oil or grease...or something waxy like (say) SPG?
If it IS like an oil, does the felt seem to be heavily saturated...or just wet through?
And (final question) do any of your six senses (including 'gut feeling') give you a hint about what the lube is made of?
CM