FWIW, "Mink Oil" is a euphemistic name for liquefied pig fat and silicone. There has been a lot of debate in the "leather world" about this stuff. Some say that it can make chrome-tanned leather too soft; some go so far to say it can cause the leather to deteriorate. (Depending on how often you go through a pair of boots, you may never know!)
I've never tried it, but TOTW sells real Mink Oil tallow rendered from mink fat as a patch lube. This might be better.
Personally, since I read some of the controversy with Mink Oil, I've switched to Sno-Seal (which is beeswax based) or the same beeswax/bear grease mixture that I use for patch lube as a leather conditioner.
:m2c:... and, as always... :results: