[6pack] Parts washers

[John North]

Anyone use one of these stand-up types with the flexible hose?
Normally I use a plastic bucket and kerosene, but I'm thinking about
buying something like this:

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=7340

or this

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94994

The manuals say not to use kerosene or other flammables, but the store
clerk said mineral spirits is OK.   Not sure that mineral spirits is
any less flammable than kerosene - anyone know better?

Any advice appreciated.

John North