Parts Washer, What Solvent?

If you have a Harbor Freight or similar import parts washer, they advise you not to use anything flamable. I believe this is a CYA move because the lids do not have a fuse-link, and will not close automatically in the event of a fire. I have had one for several years and it is full of "Stoddard Solvent" which is somewhat flamable. You can get the stuff from your local petroleum product wholesaler like PAM Oil in Sioux Falls.

My shop is not attached to the house, and I would not under any circumstances advise keeping anything flamable in an attached garage (not even mower gas), but thats just me.