Is this the stuff I am looking for?
https://www.summitracing.com/parts/...7wsjmvS9uWPk6Z1dBPlbc5m6JAt-ExSRoCNAYQAvD_BwE
I do not mind paying $20 shipped for this stuff if the levels are looking a little low. The car is honestly not getting driven much right now because it is my wife's, and the stay-at-home order is keeping her from driving much at all.
Yes, that's the premixed so you can add it as it comes. Honestly, you can buy non-AC Delco Dexcool locally at just about any place that carries antifreeze. Any auto parts store, Walmart, etc. would carry it. (Prestone, ShellZone, Zerex...)