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Jiffy Lube suggested that I have a Radiator Flush completed ($60)! I have 72K on my 2007 Santa Fe LTD and haven't done this already. I'm sick of paying them for oil and other stuff and I recognize I can do these things myself.

Either way how can I do a drain and refill of my radiator?
What type of coolant should I use? Prestone 50/50
What do I do with the old coolant?

Thanks in advance!
 

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From your friends at hmaservice.com (DO get yourself a 'membership' there - it's free) ... the better instructions are shown on the 2008 model, but same design. There's a bit of Korean/English going on, but the intent always seems clear at their site.

Engine Coolant Refilling And Bleeding


Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator.


When pouring engine coolant, be sure to shut the relay box lid and not to let coolant spill on the electrical parts or the paint. If any coolant spills, rinse it off immediately.

1. Make sure the engine and radiator are cool to the touch.
2. Remove radiator cap.
3. Loosen the drain plug, and drain the coolant.
4. Tighten the radiator drain plug securely.
5. Remove, drain and reinstall the reservoir. Fill the tank halfway to the MAX mark with water, then up to the MAX mark with antifreeze.
6. Fill fluid mixture with coolant and water(4 : 6) slowly through the radiator cap. Push the upper/lower hoses of the radiator so as bleed air easily.


• Use only genuine antifreeze/coolant.
• For best corrosion protection, the coolant concentration must be maintained year-round at 50% minimum.Coolant concentrations less than 50% may not provide sufficient protection against corrosion or freezing.
• Coolant concentrations greater then 60% will impair cooling efficiency and are not recommended.


• Do not mix different brands of antifreeze/coolants.
• Do not use additional rust inhibitors or antirust products; they may not be compatible with the coolant.

7. Start the engine and run coolant circulates. When the cooling fan operates and coolant circulates, refill coolant through the radiator cap.
8. Repeat 7 until the cooling fan 3 ~ 5 times and bleed air sufficiently out of the cooling system.
9. Install the radiator cap and fill the reservoir tank to the "MAX" line with coolant.
10. Run the vehicle under idle until the cooling fan operates 2 ~ 3 times.
11. Stop the engine and wait coolant gets cool.
12. Repeat 6 to 11 until the coolant level doesn't fall any more, bleed air out of the cooling system.


As it is to bleed air out to the cooling system and refill coolant when coolant gets cool completely, recheck the coolant level in the reservoir tank for 2 ~ 3 days after replacing coolant.
 

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It is super easy. I did a drain/fill on my 2008 some time back. The radiator drain plug is even accessible through the plastic belly pan under the engine compartment. There's a notch/hole through it for access.
 

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QUOTE (Frank G @ Mar 26 2011, 04:49 AM) index.php?act=findpost&pid=420801
What coolant came stock on the SF? Was it the green (regular) or the red (long life)? Can't tell for sure by looking at the reservoir.

Thanks,

Frank

Hyundai still uses plain old everyday coolant.

Get you a 5 gallon pail, pour new coolant in the pail, then add 3qt of water, mix ti up,, use that to refill cooling system.
 

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QUOTE (sbr711 @ Mar 26 2011, 07:18 AM) index.php?act=findpost&pid=420840
Hyundai still uses plain old everyday coolant.

Get you a 5 gallon pail, pour new coolant in the pail, then add 3qt of water, mix ti up,, use that to refill cooling system.


I guess I'm getting too lazy for even a pail. They are selling premixed(50%/50%) that make it super easy and you just can't mess it up. Finding the drain hole is the toughest part of the job. I'm still sitting on the used coolant so I guess I need to go out and find out where I can dispose of it properly.
 

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Did you pay same price for the mix as the price of 100% stuff ?
 

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Usually it's around the same price. I'm not paying that much for water.

I try to keep an empty antifreeze container around, and when it comes that time I can pour half of a 100% into it, then fill both with water.
 

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QUOTE (sbr711 @ Mar 26 2011, 04:54 PM) index.php?act=findpost&pid=420968
Did you pay same price for the mix as the price of 100% stuff ?
I remember I got it at wally world on sale and it was a actually cheaper than 100% I can't find the post I did on it over a year ago, but I also bought and added the same brand-name bottle of super special (and probably rip-off) cleaner, lubricator, extender additive at the time.

I did that coolant swap around 40Kmi and honestly it was as clean as new then.

Joel
 

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QUOTE (canderson @ Mar 27 2011, 12:04 PM) index.php?act=findpost&pid=421285
? Aside from the cost of the packaging, it shouldn't be much more than 50% the price of the pure stuff.
Reminds me of when I was watching my carbs and bought some low carb orange juice. Brought it home and read the label closely and found I'd just paid top dollar for 50% diluted with water -orange juice!
-
 

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bleed air out of the cooling system.

As it is to bleed air out to the cooling system and refill coolant when coolant gets cool completely, recheck the coolant level in the reservoir tank for 2 ~ 3 days after replacing coolant.
I am not clear how to bleed air out. Does it happens while doing steps to refill the coolant or there is an extra step?
Also, it drained only one gallon of old coolant including the reservoir, I expected 7.5 QT... any idea?
The level was halfway between min and max before the draining it.
 
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