My mechanic changed my coolant today and used green coolant instead of Dex-Cool. The manual says Dex-Cool, but my mechanic said I don’t need to use Dex-cool anymore because my car is old and has 133k miles. He thinks green coolant is just as good if not better for an older, high-mileage car. (This conversation tool place after the job was done, so I didn’t get a vote, not that I have a strong opinion on the subject.)
What do you all think of my mechanic’s perspective? I’m just looking a second opinion.
A little more info: The last time I had my coolant changed was at Jiffy Lube and they didn’t use Dex-Cool either. They used a yellow coolant which I believe they described as a universal coolant that could be used in any car. That was a few years ago.