interestingly, it's so high in solvent content, WD-40 can run an IC engine for short periods... we used it to test-fire old Motorcycles that came into the shop, before pouring endless hours and cash into cleaning/rebuilding carbs and lining fuel tanks....
the "oil" amounts to a very low percentage of VERY light machine oil.

i switched to PB Blaster decades ago, and never looked back.
Honda, Kroil and CRC make some great penetrant oils too.
i keep a can of WD-40 around for test-firing things...it smells remarkably like KEROSENE, for some odd reason...