ACDelco Dex cool in 2019 Corolla

[Ashraf Jaafar]

Hi, yesterday I topped off my coolant reservoir for the first time with Dex-cool coolant ( orange color) about 50 ml , after that I know that this type of antifreeze is non-compatible with Toyota coolant, so is there any harm in my cooling system if I added this tiny amount of Dex-cool in my reservoir?

 

[Chris Meutsch]

1.6 ounces should be OK. But no more!

 

[Donald]

What was the drive to even top it off at all? I would have left it down if it was only 1.6 oz. Thats less than 1/4 cup in the US.

 

[Bottom_Feeder]

It's totaled.

 

[atikovi]

Drain the reservoir and put in the correct coolant.

 

[Ashraf Jaafar]

After some research , I found this piece of information in the ACDelco Dex-Cool datasheet, they say it is compatible with ethylene glycol based coolant ! By the way I have checked the remaining quantity in the dex cool bottl, it was 980 ml, that is mean I poured only 20 ml of it in my reservoir. Thank you all for replies, I do appreciate it

 

[fisher83]

That small of an amount is pretty unlikely to cause any issues. I'm certain that there are millions of Corollas out there cruising around a quart or two low on oil and running whatever random fluids the local Iffy Lube put in them and they still manage to last a very long time.

 

[Bottom_Feeder]

True but coolants don't mix easily like motor oils do. Seeing what Dex-Cool even does to cars that are spec'd for it, I wouldn't put it in anything that didn't call for it nor would I ignore a vehicle that had it in it.

Did he hurt anything with so little Dex-Cool? Doubtful. But if it needed so little he would have been better off just using distilled water.

 

[Jimmy_Russells]

True but coolants don't mix easily like motor oils do. Seeing what Dex-Cool even does to cars that are spec'd for it, I wouldn't put it in anything that didn't call for it nor would I ignore a vehicle that had it in it.

Did he hurt anything with so little Dex-Cool? Doubtful. But if it needed so little he would have been better off just using distilled water.

This was kind of true 20 years ago, not so much anymore.

 

[2EHA]

fully compatible

no worries

 

[nthach]

Toyota’s coolant and Dex-Cool is similar more than different. They both use sebacate, Dex-Cool adds on 2-EHA. Toyota pink/red are phosphated for quick protection of aluminum and ferrous metals, while Dex-Cool takes a while to work via passivation. You’re fine topping off - use Asian pink or Prestone Cor-Guard for total replacement.