Kroil is primarily merchandized to industrial, commercial, and military customers. It's very seldom I've ever seen it on the shelf of auto parts or hardware stores, and then only the Mom & Pop independents. It's too expensive to appeal to the WD-40 and PB Blaster crowd, no matter how good it is. They do have a direct-order option on the website.

I don't know about now, but 30 years ago, every military base worldwide stocked Kroil as their primary penetrating oil. Gotta be good if Uncle Sam ships it all over the world for use on GI equipment!
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!