Coolant Change at 48000 kms?? - Hyundai Forums : Hyundai Forum
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#1 Old 08-23-2012, 10:01 PM
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Coolant Change at 48000 kms??

So the dealer recommends a coolant change at 48000 kms, seems too soon, can anyone convince me otherwise?
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#2 Old 08-23-2012, 10:11 PM
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Hyundai doesn't use the long life fluid in most of their cars.

It lubricates the water pump and the additives do wear out.

You don't have to pay the dealer big bucks for a flush; you could do a dump and fill yourself. I would do it; cheap maintenence.
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#3 Old 08-23-2012, 10:17 PM
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What does your manual say? I thought the initial coolant was supppsed to last about 4 years or 60k miles

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#4 Old 08-23-2012, 10:24 PM
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I just looked at the online manual on myhyundai and under the normal driving conditions it listed 120k miles and i dont see anything special for severe conditions. Perhaps they do use the super long life coolant in the new elantra.
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#5 Old 08-23-2012, 10:27 PM
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I change the coolant on all my vehicles every 2yrs regardless of kms. It's cheap and easy to do yourself.

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#6 Old 08-23-2012, 11:30 PM
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Although it commonly referred to as antifreeze or coolant, the primary function of the coolant other than raising the boiling temp of the liquid is to inhibit corrosion and to lubricate the coolant pump and various engine seals. By-The-Way Aluminum is especially sensitive to corrosion and our engines are aluminum.

The lifespan of your coolant (antifreeze) will depend on it's color and the thing that wears out over time is the ability of the coolant to inhibit corrosion.

The common green or yellow colored is short-life and should be changed every 2 to 3 years or 30K miles.
The long-life coolant is orange in color and should be good for 4 to 5 years or 100K to 150K miles.
Never mix the two together. If you were to change from the short-life green/yellow to the long-life orange you must thoroughly flush the entire cooling system (radiator and block).

Now, with that said I just looked at my 2013 Elantra and the coolant is definitely green which tells me it is the short-life coolant variety but the Owners Manual does say coolant change at 120K miles so obviously something is amiss here.

I can't imagine Hyundai providing a 10 Yr/100K miles warranty on the engine while loading the engine with short-life coolant and then telling the owners in the Owners Manual that the coolant is good for 120K miles.

To be safe, if your coolant is green or yellow in color I would change it every 2 to 3 years. For those that are mechanically inclined, flushing the coolant system and replacing the coolant is not a technically demanding job. If you can change your oil you can flush and change your coolant. Finding the coolant drain plugs is sometimes a mystery.

I would love to get to the bottom of the discrepancy between the color of the coolant in my car and the recommendations in the owners manual.

Don't take the coolant issue lightly. The anti-corrosion properties of the coolant is critical in engines made out aluminum or even if just the engine head is aluminum.
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#7 Old 08-23-2012, 11:35 PM
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Hey Gator thats all good info but isnt the Zerex Asian coolant green? My manual doesnt specify this type though.

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#8 Old 08-24-2012, 12:18 AM
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I believe there are tests available for coolant quality.

The manual suggests: First change at 120 000 miles or 120 months, then every 30 000 miles or 24 months... How can this make sense???

Last edited by TurboLed; 08-24-2012 at 12:25 AM.
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#9 Old 08-24-2012, 12:34 AM
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Quote:
Originally Posted by someguy View Post
Hey Gator thats all good info but isnt the Zerex Asian coolant green? My manual doesnt specify this type though.
WOW! This is interesting.

I thought the Zerex Asian was more pink.

And now I just read that the Hyundai Coolant is a long-life coolant and it is blue/green in color. These days it's the formulation that is important more so than the color. One thing for sure. You don't want to mix the traditional green/yellow coolant many are accustomed to with the new technology coolants.

Here are a couple of very good reads. It seems as though a simple comparison is not realistic and my attempt to make it simple might have further complicated the issue.

Will try to come up with a better comparison after I examine all available info.

Heck, I need to know what I would use if I need to add a little to top-it-off.

Choosing The Right Coolant - Popular Mechanics

MOTOR Magazine Article | MOTOR Information Systems
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#10 Old 08-24-2012, 12:46 AM
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Top off with distilled water. I already have twice. In most of USA climate up to 60% water is perfectly fine. I assume the factory mix was exactly 50/50

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