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Old 09-20-2010, 12:20 PM   #1
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Simple Green Coolant Flush

Has anyone ever used a simple green solution to flush their cooling system? I have read a couple things on it, but would like to hear from someone who actually did it.

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Old 09-20-2010, 12:40 PM   #2
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Coolant flushes are normally a bit acidic to help disolve hard water (dissolved minerals) deposits inside the radiator. I'd use a traditional radiator flush, not Simple Green which is otherwise very good stuff.

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Old 09-20-2010, 12:43 PM   #3
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I've done flushes with Dawn dish detergent before on my '88 silverado and I would bet the results are similar to simple green (which I'm HUGE fan of when cleaning tires and wheels). Since both foam up (the dish detergent more), you're going to want to use either a constant pump-type system or you're going to want to do the flush quite a few times.

... of course you're also talking to someone who ran water as a coolant 365 days of the year

Edit: I'd go with Jerry's suggestion. If it's a vehicle you REALLY care about, spend the extra bucks and buy the coolant flush for some peace of mind.
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Old 09-20-2010, 12:46 PM   #4
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Quote:
Originally Posted by burton160w View Post
... of course you're also talking to someone who ran water as a coolant 365 days of the year
While pure water cools better, it's sure a lot harder on the cooling system and water pump. Coolant contains lubricants for the water pump and anti-corrosive additives that are really key to keeping the cooling system functioning well.
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Old 09-20-2010, 12:48 PM   #5
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Didn't realize about the acidity, just want to make sure I get the system as clean as possible before I put in the new radiator. Plus I am thinking of doing the water pump too since I will have it apart anyway.
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Old 09-23-2010, 06:43 PM   #6
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If there is any aluminum anywhere don't use simple green.

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