Yep- - - -it's a gimmick. Propylene Glycol was also sold under the brand name "Safety Freeze" at a LOT lower price than that stuff. P.T. Barnum would be proud of the sales pitch they are using to reel in the suckers!

Peak sells propylene glycol under the brand name "Sierra"- - - - -but it's still a "concentrate" that needs to be diluted with water to function properly. It's on Ebay right now for $26.99 a gallon- - - -plus $10.00 shipping.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!