Is Prestone blue okay for Hyundai?

[taylorjared1996]

Hi all,
So my wife has a 2020 Kona which has the bluish green Hyundai coolant. She hit 120k miles so I went to change the coolant as per the manual by doing a double drain and fill. I used supertech blue for the first drain and fill and then Prestone blue for the second. I would've done both with supertech but they only had one left of both the supertech and Prestone. Hindsight, I should've just gone and gotten 2 bottles of zerex Asian blue at that point but here we are. I figured since they cover basically the same brands except for Hyundai according to the bottle, and are both POAT then it'd be fine to use the Prestone even though it doesn't specify Hyundai specifically. My only concern now is if the Prestone has anything that would not be good for the cooling system, namely silicates or borates. The reason why I'm worried is because the Prestone green color specifies on certain websites that it's silicate and borate free but not for the blue. But logically speaking, if it's rated for vehicles like Honda and Subaru, then it should be silicate and borate free, right? I'm probably overthinking it and it's fine, but we're about to go on a long trip and if I need to flush this system out and just go get OEM fluid then I'll do it ASAP. Any help is super appreciated.

 

[taylorjared1996]

Okay I've come to the conclusion that I'm going to flush the system with distilled water a couple times and then I am going to do a double drain and fill with either OEM Hyundai coolant from the dealership or I am just going to get some of the Asian Blue from zerex. I'm pretty sure I was right about the silicates and borates, but now I went down the rabbit hole of Prestone not being that great because they use an anti corrosion additive called 2 what and I don't want under any circumstances there to be a chance that this additive wears down any of her seals and gaskets, especially the head gasket.

 

[dubber09]

I use Prestone Asian Green in my 2014 Kias, no issues. Bought Prestone Max Asian Green for next change this summer.

 

[Coolant Kid]

No need to do anything, the Supertech and Prestone are perfectly fine. Your system is good for another 5+ years.

 

[taylorjared1996]

No need to do anything, the Supertech and Prestone are perfectly fine. Your system is good for another 5+ years.

No issues with the 2eh that they use? I looked up the msds and it says it contains it and I see a lot of people talking about how it can eat away at seals and gaskets.

 

[Coolant Kid]

No issues whatsoever. I have used Dexclone coolants in various Asian cars since 2007 with no problems at all. Drain/refill, full flush and top off of whatever is in there...all works fine. My current daily driver is a 2006 Civic that has been on it since 2008. It's had Prestone, Supertech, Peak Long Life and now Napa 1EXT (which is made by Peak).

 

[Urshurak776]

No issue. I did a DI water flush in my wife's 2012 Santa Fe. l then used O'Reilly universal concentrate, which has 2EH. Doesn't affect Hyundai's. Ran with that for 160K. Did a drain and fill with their 50/50 every 50K after the flush. Car ran great. No problems.