Riding a '38 Autocycle Deluxe
Warmer water will tend to work faster, but if you get it too warm, it can give off fumes. I like water that is warm to the touch, but not boiling hot. A warmer, stronger solution will require you to adjust the time you leave the part in to soak. Never leave painted parts unattended until you are sure of the effect of the solution on your particular paint finish.