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Old 11-20-2017, 02:28 PM   #1 (permalink)
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Default Coolant leak.

Hi guys.
Just notice couple days ago coolant fluid in reservoir is lower than used to be.
Always keep up to full line.
Than I start smelling it and see small leak under .
Mostly on passanger side and in center radiator.
Curious if its any leak from radiator or it is bleder leak associated?
Thanks guys for reading.
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Old 11-25-2017, 05:59 PM   #2 (permalink)
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I am having the same issue right now and its also in the passenger side area... Does this mean its time to replace it? 2009 with 186k
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Old 11-25-2017, 06:34 PM   #3 (permalink)
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If it's the radiator then yes replace it. The question is *why* is the radiator leaking? Is it due to being plastic or something more sinister like exhaust gasses in the cooling system?

If you aren't sure where it is, the auto parts store has a dye that you can add to the cooling system which is easy to see with a UV light.
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Old 11-25-2017, 07:19 PM   #4 (permalink)
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Who makes the OEM radiator? What does everyone recommend on here? About to order one
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Old 11-25-2017, 11:37 PM   #5 (permalink)
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Quote:
Originally Posted by SilentSkulk View Post
Who makes the OEM radiator?
If you want to go with OE, buy it from Subaru https://parts.johnsonsubaru.com/oem-...bC1oNi1nYXM%3D

or you can buy aftermarket radiator Denso on rockauto for $125.
Personally I would go with Denso.
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Old 11-26-2017, 06:22 AM   #6 (permalink)
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The best method is to pressure test the cooling system.

OEM radiators have the foam seals attached. The time wasted on fitting aftermarket parts offsets the cheaper price.
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Old 11-26-2017, 07:38 AM   #7 (permalink)
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I forgot about pressure testing. You can do that too. I used to do that before I got pressure testing equipment.

You can also go here to get a price:

https://subaruonlineparts.com/

If you register at subaruforester.org and send them a pm on this thread you get a free shipping code:

http://www.subaruforester.org/vbulle...g-code-685673/

CAUTION: They didn't include one of my orders in my shipment but gave me the black friday tee shirt instead. Communication wasn't that great overall. YMMV. They advise they will be shipping the missing item which was the rear seat cargo net (a non critical item but still).
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Last edited by 06b9beca; 11-26-2017 at 07:44 AM.
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Old 11-26-2017, 07:56 PM   #8 (permalink)
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I ended up ordering the Denso radiator from rock auto for $130 and I ordered a new tstat, gasket, radiator cap from Ebay. Now I just need to go to the dealer for the super coolant. Any one know how much it is for a big jug of it? It's really expensive online due to shipping.
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Old 11-28-2017, 04:01 PM   #9 (permalink)
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Hi Guys. I was about go to a place who is only specialized for radiator and head gasket fix to do pressure test. Than buddy of mine tolde me about Bar's Leaks 1109 Liquid Cooper.
And stop for now.
Drove with small trailer for about 100 miles than put more than 100 miles on highway with speeds 65 to 85 miles /hour. And it doesn't leak any more for now.
Curious how long ?By a chance I activated my AAA membership.
Any one has done or has any feedback on this kind of treatment?
Thank you.
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Old 11-28-2017, 07:33 PM   #10 (permalink)
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I wouldn't have done that, but what's done is done. Hopefully it works for you and you don't have to see what a temporary fix like leak stop can do to an engine. Good luck!
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Old 11-28-2017, 09:41 PM   #11 (permalink)
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Quote:
Originally Posted by EMBRAER145 View Post
Than buddy of mine tolde me about Bar's Leaks 1109 Liquid Cooper.
And stop for now.
You better flush it out, before it will make more damage.
https://www.youtube.com/watch?v=KQo7CghGo1Y
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Old 11-29-2017, 07:52 AM   #12 (permalink)
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https://www.youtube.com/watch?v=76GpMD4LIwY
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Old 11-29-2017, 11:31 AM   #13 (permalink)
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Yup, if a can of snake oil fixed headgaskets, everyone would be using it. It doesn't... This is in line with the vortex air intakes and other wishful products.

Good luck though, I hope it works out for you!
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Old 12-02-2017, 11:17 AM   #14 (permalink)
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Hi guys.
So replacing radiator.
Which type of coolant use?
Green or blue from Subaru?
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Old 12-02-2017, 06:05 PM   #15 (permalink)
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Here is the best deal that I could find on the proper green.

http://petroleumservicecompany.com/p...1-gallon-case/

Stinks to pay shipping but still beat NAPA. This is what to get if you go green Peak. The bottle must say GLOBAL not regular Peak. It is harder to find. I think Walgreens (or CVS) and NAPA are the only places to get it locally....or you could of course go blue.

I am not sure if blue can mix with green...no real reason for me to find out. If it CAN'T mix with green then I'd be sure that you make sure all of the coolant is out of the system. That would involve pulling the thermostat which you would have to do anyways if you are on a quest to get all of the coolant out. As a rough *guess*, I'd say that the radiator itself holds only half of the coolant in the system at most.

Up to you.
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Old 12-02-2017, 06:35 PM   #16 (permalink)
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I know is up to me.
But went to Subaru dealer to get parts and fluids.
And guy said I supposed to pour blue coolant.
At 60K dealer put green coolant, at 100K the same dealer recommend green coolant again ,and i did.
But today different dealer recommended to put blue coolant. He said his chart saying up to 2008 they used green coolant, after 2008 starts using blue coolant.
In this case start thinking who is right?
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Old 12-02-2017, 07:08 PM   #17 (permalink)
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Quote:
Originally Posted by EMBRAER145 View Post
I know is up to me.
But went to Subaru dealer to get parts and fluids.
And guy said I supposed to pour blue coolant.
At 60K dealer put green coolant, at 100K the same dealer recommend green coolant again ,and i did.
But today different dealer recommended to put blue coolant. He said his chart saying up to 2008 they used green coolant, after 2008 starts using blue coolant.
In this case start thinking who is right?
What year is the vehicle?

I did a quick search and found this:

Super Blue coolant mix with Green SLLC - Subaru Outback - Subaru Outback Forums

I got tired of looking at the thread but it *seems* that mixing the two might not be a good idea...perhaps that could negate the long life benefit?

If that is the case and you decide to go blue then I'd pull the thermostat.

This is a good read..might help you make a choice...

Peak Global Lifetime vs Subaru super coolant
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Last edited by 06b9beca; 12-02-2017 at 07:12 PM.
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Old 12-02-2017, 07:24 PM   #18 (permalink)
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I am sorry, it is 2009 Tribeca.
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Old 12-02-2017, 07:46 PM   #19 (permalink)
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Quote:
Originally Posted by EMBRAER145 View Post
I am sorry, it is 2009 Tribeca.
No problem. I usually find coolant recommendations follow the year in time not the model anyways.

I was just trying to take a stab at whether or not you had an EZ30R or not.

I don't think you could go wrong with either Blue or Green but I'd have a game plan if I were you.

All "Green" is not the same. Peak Global is the only "Green" OAT that I'd be using in that system....or perhaps Zerex Asian Green (I haven't researched it).

From the first post here it seems that you need to add the Subaru Coolant Conditioner in either coolant so keep that in mind. The thread is 27 pages long so I could be wrong.

https://forums.nasioc.com/forums/sho...504002&page=27

Seems that it could be ok to mix the two as per a later thread.

I can only speak to what I have done.

If you go blue do your research or/or wait for others.

This is what would work if you wanted to go green:

Pull the thermostat and drain. Go 50% Peak Global Lifetime and 50% Distilled Water. Be sure to add Subaru Coolant Conditioner. It is supposed to be added before Coolant and water per the FSM (at least on my 06). I added a bit of coolant and water then put in the SCC.

The blue might be a better option for you. I just don't have the experience there and have a few other vehicles so buying Green in bulk makes more sense for me.
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Old 12-03-2017, 11:04 PM   #20 (permalink)
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Do what I just did yesterday. Installed New Denso radiator from rock auto. New Subaru OEM radiator cap and thermostat /gasket. Also bought two gallons of the blue Subaru super coolant (premixed)
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