OK, the wife's '97 Buick with the 3.8 V6 is going to get a change to Prestone. Dex Cool was specified in the owner's manual and I have added a 50/50 mix of that when needed. I use Prestone in the '48.
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
