So I was doing my post 100k tune up which included a coolant change. Having never owned a car newer than 15+ years before, I was surprised to find crystal clear coolant (pink) pour out. Guess it didn’t need to be changed…
The general consensus on the interwebz is that you use Toyota Red/Pink… However not knowing this, I had bought Prestone Extended life (green, no silicates). By time I found out, I had no choice but to run a few gals of distilled water through and add the Prestone, as I needed to car and the dealership was closed.
Now the internet has gotten me paranoid that I have done some irreversible damage to my coolant system. I can’t seem to find any concrete info. Some people say you can only use the OEM Toyota stuff, some people say it really doesn’t matter as they are all basically the same.
Should I bite the bullet, re-flush and add Toyota coolant? Or am I good with the Prestone?