|
Don't worry too much about it. All newer antifreeze are compatible, regardless of color, with only small changes to corrosion inhibitors. Newer NOAT and OAT coolants are getting ratings of up to 15 years of service life based on the amount of these inhibitors added to the antifreeze. They all have ethylene glycol base, but a lot of manufacturers list their corrosion packages as "proprietary ingredients", which, just like oil manufacturers, they don't have to disclose.
But I'd highly doubt a failure to come from adding in a bit of PEAK for topoff. As long as it is the long-life variant, you should be just fine.
|