Doug Miller writes:

The composition of the stuff now simply is not what you say it is.

Sez you. Reality doesn't correspond to your petulant annoyance.

Here are Gunk MSDSs from 2005 or 2006:

http://www.gunk.com/msds/M914.PDF
http://www.gunk.com/msds/M914_6.PDF
http://www.gunk.com/msds/M949.PDF
http://www.gunk.com/msds/AM914_6.PDF

Looks like they may have upped the silicone from 1-2 percent to 6-7
percent. Still 93 percent petroleum/propellant/surfactant, like WD-40.

It is: paint thinner with a little silicone added.

It is not: silicone spray in the sense of a spray made of silicone.

Kind of like calling Mountain Dew "fruit juice" because it has some fruit
flavoring.