Good Coolant for 06 Hyundai

[bustednutz]

Hyundai states that I need an ethelyne glycol based coolant for the cooling system.
Other then that, it does not say what brand or type.
Can I simply use the basic green coolant? (green is in there now) Or should I look for a certain quality to put in there.

Thanks.

 

[BTLew81]

Use regular green with confidence...

 

[Rolf]

Originally Posted By: bustednutz
Hyundai states that I need an ethelyne glycol based coolant for the cooling system.
Other then that, it does not say what brand or type.
Can I simply use the basic green coolant? (green is in there now) Or should I look for a certain quality to put in there.


The factory fill is a more or less traditional green silicated antifreeze.

After trying a number of different products in the DexCool (OAT), G-05 (HOAT), and conventional (Green silicated) families, I have settled on G-05.

You can get it from Zerex (Valvoline) and it's also factory fill on Daimler-Chrysler and Ford.

Basically what I've found is it works about as well as the factory fill, but it lasts a lot longer.

Since I have a mixed fleet, it has the additional advantage of working well in other brands of automobile.

 

[MaximaGuy]

OEM and only OEM. Don't monkey in the coolant dept, you will get burned big time.

 

[Rolf]

Originally Posted By: MaximaGuy
OEM and only OEM. Don't monkey in the coolant dept, you will get burned big time.


In the case of Hyundai and Khia, OEM is green antifreeze circa 1960.

I don't think there's too much risk upgrading to something better.




.

 

[BTLew81]

Rolf...I agree. I'd use G05 or Amsoil.

 

[toocrazy2yoo]

I dunno, [censored].. Problem is, the book tells you to use a "high quality ethylene glycol" coolant, and that's it. That means use anything. While I respect all the coolants myself (I did 288K in my last Elantra, a 92 on DexCool with superior results), when I got my 05 Accent new in Feb. 06, the stuff in there was a snotty concoction of something nasty, probably old silicate, but the dealer and consumer affairs refuse or are unable/ignorant as to the formulation of Hyundai coolants.

So, I swapped out to G05 the first week I had it. Did the distilled flush thang, 6 or 8 refills until crystal clear and then 60/40 G05. At 40K, new water pump, factory original was leaking. They didn't blame coolant (they didn't even notice it was different for all I know), they just said coincidence. They stuck old snotty green back in, I changed it out to Prestone all makes, and now, at 58K, new water pump with my timing belt change, it's leaking. 2 pumps, 58K. Warranty repairs, but still..

I think I'm gonna leave the dealer syrup in it this time, I'm not having much luck in the aftermarket coolant department. Of course, this car has turned out to be such a piece of krapp with the check engine lights, bad alternator and a million other things, it could just be I got a lemon.

Not that the factory or any dealer I've taken it to care.

 

[doitmyself]

Quote:
new in Feb. 06, the stuff in there was a snotty concoction of something nasty, probably old silicate

They stuck old snotty green back in


You guys are killing me!!!!! Please educate yourselves about coolants before giving them a bad rap. There are no high silicate green coolants produced in the the U.S. anymore. Read for yourselves: http://www.valvoline.com/products/zerexoriginal.pdf

Today's conventional "green" coolants are low silicate and can last 100K or 5 years (IMO, 2/3 of that is better). They can even be used in diesel engines (with SCA), which was taboo with the old silicate coolants. GO5 has silicates also...without the phosphates.

toocrazy2yoo - you had 3 different coolant formulations/waterpumps fail in your car. I would look for other causes before blaming the "green snot of death".

Today's conventional green coolants are excellent. You just need to change them slightly more often than the long life versions - every 2 to 3 years instead of 3 to 5, depending on YOUR circumstances.

Bustednutz, if you are really concerned, you could probably send out a coolant sample and have it analyzed to determine what kind it is. The owners manual change interval might also give you a clue.

 

[Rolf]

Originally Posted By: toocrazy2yoo
.... At 40K, new water pump, factory original was leaking. They didn't blame coolant (they didn't even notice it was different for all I know), they just said coincidence. They stuck old snotty green back in, I changed it out to Prestone all makes, and now, at 58K, new water pump with my timing belt change, it's leaking. ....


Hmmm. That seems to indicate whatever it is, it isn't the coolant at fault.

The Hyunda/Khia OEM is good old plain high silicate green antifreeze.

This stuff is known for being rough on water pumps, which is why everyone has moved to low or none silicate coolants.

 

[Rolf]

Originally Posted By: doitmyself
.... There are no high silicate green coolants produced in the the U.S. anymore. ....


That's not completely accurate.

In general the "majors" have reduced the silicate content of their coolants, including their diesel heavy-duty coolants.

In fact years ago ASTM developed specification ASTM D4985 for low silicate engine coolant for heavy duty diesel engines.

This came about primarily because of the detrimental effects of silicate on water pump seals.

However, some of the independents including reprocessors that recover ethylene glycol from used antifreeze are still using high silicate levels.

The silicate levels of Valvoline's G-05

http://www.valvoline.com/products/zerexg05.pdf

and their current green product

http://www.valvoline.com/products/zerexoriginal.pdf

are very close.

The primary advantage of the G-05 is the HOAT corrosion inhibitor which, unlike the phosphate-based inhibitor in the "original", doesn't create white rock-like deposits in hard water.

 

[doitmyself]

Well, Rolf, I will concede that there might be independents or reprocessors that are cranking out some high silicate stuff. Maybe it shows up to auto shops, etc.. Everything I have seen, even the "house brands" at places like Tractor Supply Co. say low silicate.

We agree on the main points. I know better than to state "absolutes" because someone will always call me on it. Touché from you, this time.

But.....seeing that you are from D.C.... I'm not sure how much to trust what you say. I've heard that the political double talk that exists in that region spreads via diffusion and permeates everyone!!!!! I visited there as a child and I am just now recovering! Glad you're here to add to this lunatic asylum.

 

[toocrazy2yoo]

Originally Posted By: doitmyself
Quote:
new in Feb. 06, the stuff in there was a snotty concoction of something nasty, probably old silicate

They stuck old snotty green back in


You guys are killing me!!!!! Please educate yourselves about coolants before giving them a bad rap. There are no high silicate green coolants produced in the the U.S. anymore. Read for yourselves: http://www.valvoline.com/products/zerexoriginal.pdf

Well, don't hurt yerself over there, do-it. The car was manufactured in Korea in November 04, and I didn't buy it brand new until Feb. 06. It was snotty, it was out of solution, and hybrid organic acid doesn't come out of solution in snotty streaks. The replacement syrup was in the same state. That said, since the FACTORY consumer affairs people don't know what the factory uses, and since the dealer doesn't know the chemistry of the bulk coolant in his own tank on the premises, I gotta figure you don't know jack about it either.

Coolant should be clear (whatever the color and chemistry theory behind it), not textured and swirly.

The rest is settled science, OAT/HOAT and Dex-Cool, their effects, benefits and uses.