Peak has one of the products that is supposed to be compatible with most other antifreeze formulations, but to know for sure, I would visit an auto parts store and ask there. They are going to be experts on their products, and they get training related to that. There's over a dozen different antifreezes available now because so many manufacturers have specific problems they're trying to solve.
A lot of professionals want to get your red Dex-Cool, (Dex-Mud) coolant out of there. GM advertised that as "lifetime" coolant to make their cost of maintenance appear to be lower than that of their competitors, but then they put a sticker on their cars that says to replace it every three years. Even the Dex-Cool manufacturer doesn't recommend waiting three years to replace it. We normally replace antifreeze every two years because that's how long it takes for the additives to wear out and acids to start to form. As a result of waiting too long, GM has one of the highest rates of corroded heater cores and radiators due to the worn out corrosion inhibitors.
Sunday, September 13th, 2015 AT 10:32 PM