I've used the stuff from the mid-40's to over 100 degrees temperature-wise, with no noticeable difference in performance. Leave the top layer of liquid there- - - -it prevents the solvent underneath from evaporating quickly. One of my acquisitions over the years was an agitator top that clamps onto the bucket. It oscillates the dip basket back and forth with an adjustable-speed air motor, like a washing machine, and really speeds up the cleaning time. Just be careful that the tiny parts don't get bent or damaged, or find their way through the holes in the basket. I lost a set of electronic Quadrajet metering rods that way once, finally found them in the sludge at the bottom of the bucket when I changed the solvent months later. Fortunately, I had a junk carb under the workbench to scavenge some replacements.
Jerry
