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2eha and toyota #4470556
07/26/17 12:18 AM
07/26/17 12:18 AM
Joined: Jun 2017
Posts: 14
FL
Deontologist Offline OP
Deontologist  Offline OP
Joined: Jun 2017
Posts: 14
FL
I have put SuperTech's "universal" coolant in two of my Toyota vehicles. I read on the label of the ST bottle that it contains 2-EHA. From what I understand, 2-EHA eats at silicone seals. I also read that Honda hates 2-EHA, and Toyota avoids it.

1) How screwed am I? I'm looking to keep both of the cars for about another 50k miles or so (both are 150k and over 10 yrs old).

2) Has anyone else used 2-EHA containing coolant in their car?

3) How can ST advertise a "universal" coolant when it's technically not?

Re: 2eha and toyota [Re: Deontologist] #4470566
07/26/17 01:12 AM
07/26/17 01:12 AM
Joined: Apr 2017
Posts: 515
Fort Worth TX
TheKracken Offline
TheKracken  Offline
Joined: Apr 2017
Posts: 515
Fort Worth TX
If you don't mind flushing it out then I would get some Zerex red coolant which is supposed to be exactly like toyota red and just put that in. Otherwise I wouldnt worry too much.....but if I was looking at buying your used vehicle I would walk away if it didnt have red coolant in it...


2011 Prius 96k miles RLI 5w20
97 Toy T100 4x4: amsoil 0w20 242k Miles
04 Toy Sienna awd: Pennzoil 0w20 281k Miles
Re: 2eha and toyota [Re: Deontologist] #4470568
07/26/17 01:52 AM
07/26/17 01:52 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Switch over to Prestone Dexcool. I've never had any problems with it. Mix it 50/50 with distilled water.

Re: 2eha and toyota [Re: Deontologist] #4470590
07/26/17 03:59 AM
07/26/17 03:59 AM
Joined: Apr 2004
Posts: 7,832
New York
pbm Offline
pbm  Offline
Joined: Apr 2004
Posts: 7,832
New York
Thousands of Toyota owners have used Dexclones without any problems.
I wouldn't worry about it.
ST Universal used to be made by Old World Industries (makers of PEAK) although I'm not sure if that is still the case....at any rate I'm sure it's a quality product.




















'Journalism is Dead'
Re: 2eha and toyota [Re: pbm] #4470605
07/26/17 05:04 AM
07/26/17 05:04 AM
Joined: Jan 2016
Posts: 325
TX
mooferz Offline
mooferz  Offline
Joined: Jan 2016
Posts: 325
TX
Originally Posted By: pbm
ST Universal used to be made by Old World Industries (makers of PEAK) although I'm not sure if that is still the case....at any rate I'm sure it's a quality product.

According to the SDSs, looks like it's made by Prestone nowadays.


2001 Lexus ES300, 235k mi, German Castrol 0w-40, Fram TG8316
1985 BMW R80RT (1L)- M1 15w-50
1993 Volvo 945 Turbo- Rotella T5 10W-30 (CJ-4)
Re: 2eha and toyota [Re: Deontologist] #4470612
07/26/17 05:12 AM
07/26/17 05:12 AM
Joined: Oct 2008
Posts: 12,652
The Old North State
Sayjac Offline
Sayjac  Offline
Joined: Oct 2008
Posts: 12,652
The Old North State
According to known information about 2eha and universal AFs your basic premises listed are correct.

1) Might be or maybe even likely fine for the ~50k you state. As you already did it unless you want to do a complete flush/exchange, might as well go with it.

2) Personally have avoided and avoid universal AF containing 2eha in non Dex spec'd vehicles. I'm sure others have used universal AFs in Toyotas, can't speak to their results. I am currently running Peak Global Lifetime Universal OAT (no 2eha) in an 01 Tacoma three plus years, original radiator, doing fine.

3) ST advertising as 'Universal' breaks no law. In fact the greatest amount of AP store private label and other 'universal' labeled AFs are the same as ST, ie., an OAT AF containing 2eha. Peak Long Life is an example of a non store brand that would be the same or similar to ST. "Iirc", seems Old World owner of Peak brand makes ST, seems the MDSD sheet might make reference to that.

EDIT. Saw comment above. Perhaps ST has changed makers/suppliers, but doesn't change main point about containing 2eha.

Last edited by Sayjac; 07/26/17 05:22 AM. Reason: added comment
Re: 2eha and toyota [Re: Deontologist] #4470635
07/26/17 06:12 AM
07/26/17 06:12 AM
Joined: Dec 2013
Posts: 2,098
socal
barkingspider Offline
barkingspider  Offline
Joined: Dec 2013
Posts: 2,098
socal
When I had my Pontiac Vibe (same as the Toyota Matrix), I flushed the old coolant and used dexcool. It worked perfect. I wouldn't worry about using ST coolant. U should be good to go


06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)
Re: 2eha and toyota [Re: Deontologist] #4470904
07/26/17 10:34 AM
07/26/17 10:34 AM
Joined: Jan 2011
Posts: 637
Anaheim, CA
zorobabel Offline
zorobabel  Offline
Joined: Jan 2011
Posts: 637
Anaheim, CA
I used peak/prestone in a Honda Accord I used to have and had a hose eat itself and various leaks started. It was high mileage though, and it might have happened regardless.
The Corolla in my signature has original WP, radiator, hoses in fact it's all pretty much original except serpentine belt tensioner, intake gasket and wear items. I used Zerex Asian drain and fill every 3 years starting at the 6th year.


1997 Maxima 190k, QSGB 5w30+QSUD 5w30 (2:1), PL14477
2004 Corolla 193k, VWB 5w20 + SSS 10w40, MGL4967
Re: 2eha and toyota [Re: Deontologist] #4470947
07/26/17 11:06 AM
07/26/17 11:06 AM
Joined: Sep 2007
Posts: 1,023
TX, USA
JMJNet Offline
JMJNet  Offline
Joined: Sep 2007
Posts: 1,023
TX, USA
For no 3, their definition of "Universal" and your definition of "Universal" are different?


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: 2eha and toyota [Re: Deontologist] #4470966
07/26/17 11:23 AM
07/26/17 11:23 AM
Joined: Oct 2008
Posts: 12,652
The Old North State
Sayjac Offline
Sayjac  Offline
Joined: Oct 2008
Posts: 12,652
The Old North State
In the same AF section as ST, WM now sells Valvoline Asian Vehicle AF for ~$12/gal, it's the same as Zerex Asian Formula. Asian PHOAT AF perfect for Toyotas. Like the Asian OEM AFs comes as a premix.

Likely doesn't help with your question. Just pointing out there are many reasonably priced same as OEM 'type' aftermarket AFs that generally now can be easily found.

Re: 2eha and toyota [Re: Deontologist] #4471501
07/26/17 10:29 PM
07/26/17 10:29 PM
Joined: Jun 2017
Posts: 14
FL
Deontologist Offline OP
Deontologist  Offline OP
Joined: Jun 2017
Posts: 14
FL
So I'm really confused now, and I don't know whether I should not worry about it or flush it out soon and replace it all with some Zerex Asian or equivalent.

I think I might flush it out with Zerex in the next few weeks just for some peace of mind. Just wish that there was a definitive answer. Is there a Toyota or Honda rep on the forums somewhere?

Last edited by Deontologist; 07/26/17 10:31 PM.
Re: 2eha and toyota [Re: Deontologist] #4471506
07/26/17 10:38 PM
07/26/17 10:38 PM
Joined: Jul 2017
Posts: 373
PR CA, USA
2strokeNorthstar Offline
2strokeNorthstar  Offline
Joined: Jul 2017
Posts: 373
PR CA, USA
It doesn't matter. BMW uses 2-eha, millions of cars are not running OEM coolant. If you are going to worry, flush it and move on. You will never rest easy while it is in there it sounds like.

Re: 2eha and toyota [Re: Deontologist] #4471522
07/26/17 11:13 PM
07/26/17 11:13 PM
Joined: Oct 2014
Posts: 2,548
San Antonio, TX
Nyogtha Offline
Nyogtha  Offline
Joined: Oct 2014
Posts: 2,548
San Antonio, TX


"No matter how paranoid you are you're not paranoid enough. Tell the truth. Reach as many people as you can with it. That's your weapon." - Susanne Modeski, aka "Holly" to The Lone Gunmen
Re: 2eha and toyota [Re: Deontologist] #4473791
07/29/17 09:26 AM
07/29/17 09:26 AM
Joined: Jun 2017
Posts: 14
FL
Deontologist Offline OP
Deontologist  Offline OP
Joined: Jun 2017
Posts: 14
FL
The more I think about it, the more I might just leave the Super Tech in there. Because I've looked high and low or any official statement from Honda and Toyota about 2-EHA, and despite what people have said on forums like BITOG, neither of them have actually issued any official statement regarding 2-EHA.

The 2-EHA controversy seemed to have started with a few lawyers representing clients who claimed their cars were damaged by DexCool. And as we all know, lawyers tend to stretch the truth sometimes.

Re: 2eha and toyota [Re: Merkava_4] #4475018
07/30/17 08:28 PM
07/30/17 08:28 PM
Joined: Sep 2003
Posts: 1,338
Austin, TX
MaximaGuy Offline
MaximaGuy  Offline
Joined: Sep 2003
Posts: 1,338
Austin, TX
Originally Posted By: Merkava_4
Switch over to Prestone Dexcool. I've never had any problems with it. Mix it 50/50 with distilled water.


Worst advice. Dexcool will gel and kill your cooling.
My brother had a Honda with 168K miles and he took it to Sears Auto for his tires and they told him the coolant was in bad condition.
So they dumped Dexcool and 5K miles later the engine was in flames on 101.

OEM is the only way in the cooling department.


2018 MB GLE350
2011 Lexus ES350
2006 Toyota Highlander 4WD
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