According to The Natural Philosopher :

Surprisingy enough, methanol is quite agrresive. Dunno why.

I had a toy plastic plane once, with an engine that ran on
methonol/nitromethane/oil mix.

I tried to clean it with petrol...and it dissolved the surface!!!

There is no single simple amswer to which solvent dissolves which plastic.

That's for sure. First, there are "polar" and "non-polar" solvents. Alcohols
are an example of the former (OH bond), and gasoline/kerosene etc are
an example of the latter. What they dissolve _tends_ to be fairly
mutually exclusive.

And of course, "curing type" plastics (ie: epoxy resin, polyethylene)
are immune to most solvents of either kind.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.