I've got a jug of RV/Marine Antifreeze made by the Zecol Co. Ingredients; Water, Propylene Glycol. Corrosion Inhibitor Package, Dye. It's pink in color so that you know it is in the system. When I stick my nose right down into the top of the jug, I can pick up a very, very slight smell comparable to the isopropyl alcohol I use for first aid antiseptic. Hardly worth mentioning. I know my bobcat didn't mind. laugh

Frank.
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"Only when you carry your own water will you know the value of every drop."