I don't think any name brand anti-freeze will be a problem as long as it is changed on a regular basis. The big issue with some of these "new" anti-freeze solutions has been the fact that people don't flush the system. Also, some of them were really sensitive to small combustion leaks. If someone gave me a bunch of anti-freeze I'd use it, but I'd also keep an eye on it. And most likely I'd change it every year or at most every 24 months.