Alrighty then. We've successfully beaten down the urge to use the pretty orange Dexcool.
I really don't know why anyone would claim that it is "the ****". More like it
is ****.
It isn't recommended for your engine for a reason. Dexcool is an OAT type of coolant. These coolants inhibit internal corrosion of engine parts via an Organic Acid Technology. These acids react with aluminum alloy favorably to keep the coolant passages free of corroision, and they can do it for a relatively long time (extended life).
But... and this is a big BUT, if there are any other metals in your cooling system besides Aluminum, like maybe brass copper or what have you, the acids will actually be detrimental to those metals rather than just corrosion inhibitors.
Friday night stupid kid story time:
In high school I worked part time, evenings in a nursing home. I'd come in and clean the kitchen after the food prep and serving was all over with. It was kind of creepy having the old coots sneak up on you when you were working, but that is a whole 'nother story.
Anywho... Being a type A neat freak was an asset at that job. One night I was working to get some of the grody, caked up grease and dirt out from around the floor of the big appliances and had been using ammonia. It wasn't going fast enough for my teen aged impatience, so I decided to look for alternatives. Yeah, so... long story short that big old bottle of bleach looked like a real good idea. :blink:
Luckily (for me and my much later conceived children) I didn't die that night, nor did I kill off any of the wandering, demented residents. In fact, nobody at the place ever even found out about it. But now that I'm posting this on the intarwebs I expect a series of subpoenas at any time now.
Just another one of my many narrow brushes with the grim reaper, I guess.