Originally Posted by MacThayer
I don't know what's in those other products, but WD-40 is nothing but (believe it or not) fish oil.
This is absolutely false. WD-40's own website states that it is a petroleum product, and as such, probably not a good idea to put it in a dryer.
Of course, having said that, it's probably not a good idea to put anything treated with Goo Gone or Goof-Off in a dryer, either, without washing thoroughly.