Coolant Dilemma! Ok to use Green coolant with Red coolant? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 03-23-2009, 08:21 AM
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Coolant Dilemma! Ok to use Green coolant with Red coolant?

I have a 2002 Camry SE. I was recently checking all the fluids on the car and noticed that the coolant level was considerable low. I checked my garage for some coolant and saw I had some AutoPride Coolant & AntiFreeze. I mixed it with some distilled water doing the suggested 50/50 mixture. I then realized before I put in the mixed coolant that it was Green and the coolant in the coolant tank was Red!

I'm wondering is it ok to use this Green coolant in the car? Will I harm anything by using it? I know a lot of these coolants you buy in auto-parts stores basically work in all cars no matter the color. It usually says that on the bottle though and it didn't on this AutoPride coolant. I feel like it should be fine since I used this mixture in another car. What are all the car experts opinions about this?

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Old 03-23-2009, 09:04 AM
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I would check your owners manual, if you don't have one check with the dealer. The GM Dex Cool was/is not compatible with some green types and could make a mess of the cooling system. I would check to be sure.
Since you were not aware of the color of the coolant in the car, is it the original? Likely past due for a complete change.
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Old 03-23-2009, 09:33 AM
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You can mix the two together for a short period of time. The red ginger based coolant was designed to last longer than the green thereby helping the environment by reducing the amount of antifreeze that gets dumped down the drain. It is supposed to be safer for soil and water supplies because it's main ingredient is organic and naturally occuring.

Personally, I would totally drain and flush the system if I was going to switch from one coolant to the other, and change the coolant based on the recommended interval by the new coolant's manufacturer. Make sure that whatever coolant you use is safe for aluminum. Obviously mixing the two together is going to give you whatever color red and green mixed together make.

I've heard stories of the red and green coolant gumming up the radiator and heater core after extended use but I've never seen it first hand. Also make sure you use distilled water instead of tap water when changing the coolant.

Last edited by DaSouthWon; 03-23-2009 at 09:36 AM. Reason: grammatical errors
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Old 03-31-2009, 08:36 AM
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So I guess I really shouldn't? Is it ok to get red coolant from an auto parts store?
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Old 03-31-2009, 08:46 AM
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As suggested, it's far better to drain and flush the system then fill with one kind of coolant and distilled water. The horror stories that are floating around on the Internet about the problems using the long life coolant are vastly without merit and are embellished by people who have no experience with it.

Vince
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Old 03-31-2009, 04:07 PM
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Most of the ones I have been doing, I switch to the ZL5 long life (yellow) it is safe to mix with either and I can usually buy it cheaper than I can the green or red.

If you do mix them (red and green) you just go by the service interval for the green coolant. Dexcool from GM did have some issues with gasket compatiblity, there is/was a class action lawsuit that was settled last year, I think.

By the way Toyota Red and GM dexcool are different, I think
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Old 03-31-2009, 04:37 PM
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I'm totally against the GM Dexcool. I have a 98 Jimmy that I bought in 2003 and not long after I got it started overheating so I flushed the radiator and the Dexcool stuff solidified or something as there was orange gunk in the system that was clogging things up. After flushing it 3 or 4 time I got most of it out and switched to the greed stuff and haven't had a problem since.
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