What dissolves old, dried Boiled Linseed Oil?

[Phloating Phlasher]

The real deal, "Stand Oil" not the "Home Improvement store" rubbish?
I have a bottle of it but the "Adult Proof push down & twist" cap's internal part is glued to the bottle neck by dried oil.
Any ideas?

[Allen]

Drill or cut a hole in the cap and pour the linseed oil into a different bottle or can.

I'm assuming the bottle has no collector value since it has a push and twist cap.

[M1Garandy]

If it is a plastic rig over a metal cap, pop the plastic off and apply a suitable application of Channellock pliers to the remaining metal cap.

[Johnny P]

Try soaking it in hot water before trying to remove the cap.

[dryheat]

Channel locks yes. Big ones.
I put the container in the vise. Tighten gently. Put the BIG channel locks on the plastic cap and turn. It'll come loose. Or do it old style; When the ketchup bottle cap was stuck my dad would run hot water over it and then tap the cap the handle end of a butter knife. That works too. Here in AZ after a couple of years the plastic cap gets so fragile it just falls off and then you don't have to deal with it any more.

[Phloating Phlasher]

Its a modern bottle, but glass. Because of that I'm avoiding honkin' big pliers & so on.
Guess what I put on my "Thonkin cap".
Dripped a little bore solvent in the inverted cap! Why? It removes stock finish!
Badda Bing, Badda Boom! Thanks for the ideas guys.

[Fred]

Acetone will. Absolutely and in just seconds.

[Phloating Phlasher]

But what will it do to the plastic cap components?

[dryheat]

Who cares? It's plastic. Good riddance. Do your part. Take the crumbs to the recycling center. But Acetone, what is the result of spilling a spoonful of that awful chemical? BLO- do you know what the ramifications are of using that? You get pretty wood, but can you sleep at night? I can and so can 99.9% humans. The real problem is: there's too many people on Earth who have access to cool chemicals.
So, what I'm saying is...
Sorry Phloating Phlasher if I've derailed your post.
It's always something: why do you have BLO in a glass container with a metal cap and a plastic cap? It doesn't compute. Correct me.

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[Phloating Phlasher]

because that's the way it was packaged in the store where I bough it perhaps?
Brownells use metal cans, Michaels used plastic adult proof plastic caps.