What is it with WD-40?

According to the manufacturer...

“WD-40 does not contain fish oil, contrary to a popular myth, nor does it contain silicone, kerosene, water, wax or graphite.”
i read that it originally, it contained fish oil -but yeah tons of fake info out there

we used this hand cleaner when painting underwater ICBM (actually Ship Launched, SLBM) tubes IIRC called Naptha.
The wife uses some mixed into a bar of soap in her laundry. It is so similar to me a mineral spirits or paint thinner BUT it doesn't burn. I can't find it here and the manufacturer got bought out by a German company while I was stationed at the Launcher Shop at TRF. That stuff was a fantastic stain or (almost dry) paint remover! @Ddaddy