Prestone all-vehicle coolant

I know this is going to be fun. The forum is full of book regurgitators, curious (sometimes scientific) rule benders AND "hold me beer, we gonna try somethin' folks...."

I had a leak and realized I was low on coolant...so I went off to Wally World to dutifully buy GM-approved coolant...

I looked hard, and all I saw (not even empty shelves) was "Prestone all-vehicle" and Wally's brand. I didn't see anything that said GM approved or Ford approved.

I can't remember when I last saw green stuff in a car- so I assumed, this would be pink stuff (and I'm not referring to RV winterizing antifreeze).

I open it (it's green) and pour it in....I KNOW that the GM folks are cringing.

I read the now-worthless internet and see lots of strong pontification that this is bad and other’s say "OK"...BUT BETTER YET, I GO TO PRESTONES WEBSITE AND WATCH A VIDEO TELLING ME IT'S OK TO MIX THE ALL-VEHICLE STUFF!

Also, to keep this interesting, I actually mixed stuff LONG ago...drove it a long while with no issues.

Looking forward to anyone with experience commenting. Not looking forward to it, but there will be rule regurtitators. ALWAYS fill the black tank and NO towing with a half ton and be sure to only use N2 in the tires...right?

:-)