Yeah, it’s great stuff. Used to use Pennzoil, which was not bad, but I like Valvoline more.

If it’s thick and cloudy, could be coolant leak. I would get a mechanic to check it out just to be safe. Condensation is usually thin and doesn’t linger.

It could just be condensation. Is it cold and humid where you live? Usually the worst the humidity and in a cooler climate, the more noticeable it is.

I love the Valvoline MaxLife for high mileage vehicles, one of the best imo.