I get what you’re saying. I just had the head gasket worked on and replaced this past Thursday. I am going to do a block test on it anyways. I am sure the machine shop didn’t screw it up. Oddly enough, the light went off after opening the cap and putting it back on this morning. Then it came back on tonight. Weird! But it hasn’t overheated (fingers crossed)… yet.
I feel like I am living in some kinda “reactive overheating Bermuda Triangle of Georgia” or something.