[Vicegrip]

Varsol and paint thinner are two different things. If I remember corectly Varsol was developed for cleaning and as a industrial process degreasing agent and has a high reid pressure. It is made to evaporate as slowly as posable. Paint thinner is paint solvent so to speak and needs to evaporate in order for the paint to dry. one can be used for the other but each is better at it's own use.

I forgot to add that a parts washer that is made for volatile organic solvent might rust up if used with water based solvents. They make washers designed to work with the water stuff. Heat makes the water baised stuff work better and some wet solvents have rust inhibitors so you crank won't flash rust when it comes out of the tank. Can't have a rusty crank...

If you have too much $ sitting around you can get a parts washing system that distills the dirty fluid automatically. The fluid never gets dirty, you only have to add what is lost from wet parts and you have a small catch tank of the dissolved gunk only to dispose of.