We buy Kroil by the gallon in our farm shop and use in decent squirt cans. The aero Kroil cans don't work all that well I'm afraid but I use the graphite Kroil in all my locked gates. The smell of Kroil puts me in a zone, with many a day saved on the farm with enough Kroil, heat, hammers, and persistence.
Eight out of ten ladies prefer their men
to come home from their battle with stubborn fasteners, bearings, or shafts smelling of Kroil.
We even have the tradition of throwing a formal party for my thirty staff, known as the "Kroil Formoil" where select men
and women are given a can of Kroil. "Because nobody should be without a proper penetrating oil".
I'm sure mouse milk is the cats ass where you're from, but around my farm and boat, its Kroil.