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#4682461 - 03/02/18 04:08 PM Mismatched orange/blue/red coolant
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
I own a 2004 Honda Civic with 140,000 miles. I have a bubbler for the radiator, a repair manual and a gallon of blue 50/50. The problem is that the person who owned it before me has put something else in it!

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#4682465 - 03/02/18 04:11 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
SirTanon Offline


Registered: 06/23/14
Posts: 2146
Loc: Phoenix, Arizona - USA
There's a relatively easy fix for this:

Drain the entire system, flush a couple times, and then refill with the correct coolant at a 50/50 mix.
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#4682467 - 03/02/18 04:11 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
No idea how to do that.

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#4682468 - 03/02/18 04:14 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
My plan was to drain the radiator, cap it back off and fill with the no-spill funnel. Let it run and get rid of all the bubbles.

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#4682471 - 03/02/18 04:19 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
CELICA_XX Offline


Registered: 11/28/08
Posts: 861
Loc: Oklahoma
Originally Posted By: onetwoothreee
My plan was to drain the radiator, cap it back off and fill with the no-spill funnel. Let it run and get rid of all the bubbles.


The coolant system extends beyond the capacity of the radiator.

You would want to flush the whole system out.
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#4682475 - 03/02/18 04:27 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
JC1 Offline


Registered: 11/29/08
Posts: 3001
Loc: Oshawa, Ontario Canada
Originally Posted By: onetwoothreee
No idea how to do that.


Check this video out

https://www.youtube.com/watch?v=s--5ft5YiHg&sns=em
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#4682478 - 03/02/18 04:27 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
I doubt that's going to happen unless I'm paying someone to do it. The stock coolant is blue. The car has been in a front-end (previous owner), and the coolant is now orange (which is the wrong spec for this car). I've got a tank full of straight orange.

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#4682480 - 03/02/18 04:32 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
Let me rephrase. Which is better in my application: having a 100% concentration of Dex-Cool, or a 50/50, 75/25, 90/10 (etc) concentration of orange and blue (or red)?

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#4682488 - 03/02/18 04:37 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
Right now, I'm most likely to take the blue 50/50 back for a gallon of the red 50/50 (same as I understand) and stick with my previous plan.

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#4682495 - 03/02/18 04:41 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
Gebo Offline


Registered: 09/18/02
Posts: 2079
Loc: VA
I don't think it will be too hard. On my Toyota's, I drain coolant from radiator and from an engine block drain. I make sure the heater it turned to highest heat setting. That's the only way you will empty what's in the heater core. I empty my coolant reservoir. Close everything back up and add Toyota Coolant

In your situation, I would drain all the coolant (I am assuming the civic has a block drain) and then add distilled water to fill up the system. I'd drive it with heater on full heat until it warms up good. Then I'd drain all of the distilled water and refill it again. Run it til it gets hot and then drain it all out. Then I would add the Honda blue coolant. In other words, I would do 2 rinses with distilled water.

If that seems more than you want to do, find a good mechanic who could flush the system for you.
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#4682523 - 03/02/18 05:09 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
I have 3 neighbors with lifts

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#4682535 - 03/02/18 05:21 PM Re: Mismatched orange/blue/red coolant [Re: Gebo]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
Originally Posted By: Gebo
I'd drive it with heater on full heat until it warms up good. Then I'd drain all of the distilled water and refill it again. Run it til it gets hot and then drain it all out. Then I would add the Honda blue coolant. In other words, I would do 2 rinses with distilled water.

The distilled water is not going to happen. Yes, it has an engine block drain; it's right next to the oil filter...

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#4682555 - 03/02/18 05:35 PM Re: Mismatched orange/blue/red coolant [Re: SirTanon]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
Originally Posted By: SirTanon
There's a relatively easy fix for this:

Drain the entire system, flush a couple times, and then refill with the correct coolant at a 50/50 mix.
Dealer wants $139 and my neighbor doesn't want to mess with it. Looks like I'm buying 2 gallons of 50/50. Looks like the owner of this car didn't know what they were doing.

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#4682591 - 03/02/18 06:22 PM Re: Mismatched orange/blue/red coolant [Re: JC1]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
It has orange coolant in it and it's not supposed to. I took it back.

Originally Posted By: JC1
Originally Posted By: onetwoothreee
No idea how to do that.


Check this video out

https://www.youtube.com/watch?v=s--5ft5YiHg&sns=em


https://www.youtube.com/watch?v=97y5k31VhAA

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#4682710 - 03/02/18 08:21 PM Re: Mismatched orange/blue/red coolant [Re: onetwoothreee]
onetwoothreee Offline


Registered: 02/28/18
Posts: 71
Loc: Illinois
Possibility it's Peak Global. Why would they not?

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