Prestone AMAM vs Supertech

[cb_13]

From the web searching I’ve done it appears that Prestone makes Supertech coolant. From what I’ve found the two formulas do look different as the Prestone shows to have phosphates as part of their cor guard additive package. Also the Prestone is advertised as a ten year coolant and the Supertech as a five year.

If my assumptions are correct then I feel the Prestone is worth the few extra dollars a gallon for my vehicles. Has anyone found information that would contradict that?? Or know anything that I may have missed?

 

[Jake_J]

I think you have it covered pretty well, the newest SDS I could find on Supertech does appear to show it's made by Prestone. I would say that Prestone is worth the extra money if you're using it in Asian vehicles, and Supertech would be a more suited if you use it in American vehicles (excluding the newest Ford's).