330Scott
Well-known member
Just thought that I would let you guys know that Simple Green freezes. I bought a 5 gallon jug of concentrated Pro Series Auto Cleaner/Degreaser for my parts washer and thought I would contact the company before I diluted it to their recommended 4:1 ratio. I am concerned because my parts washer is in my shop, which I keep unheated unless I am in it and we do get sub-zero temperatures around here.
Here is their reply:
So I guess that I will continue to use mineral spirits through the winter.
Here is their reply:
Thank you for your inquiry. Simple Green Pro Series Automotive Cleaner concentrate and a 1:4 dilution will freeze just like water will. With both of them, you can thaw out the product, shake or mix the container to make sure all components are well-mixed again, and use the product without any loss in efficacy. Multiple freeze-thaw cycles will start to diminish cleaning ability (more than 2 times), so it is best if you can at least keep the concentrate in an area where it will not freeze. Some people put isopropyl alcohol into the cleaner to keep it from freezing, but please be aware that you will destroy the environmental and safety aspects of the product if you do this, and so we don't recommend it.
So I guess that I will continue to use mineral spirits through the winter.

