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  #1  
Old February 17th, 2008, 07:27
sharq sharq is offline
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seafoam in the radiator?

can i run seafoam in the radiator to flush it? never heard of anyone doing this.
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  #2  
Old February 17th, 2008, 07:30
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JNickel101 JNickel101 is offline
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Re: seafoam in the radiator?

um, i wouldnt....

Prestone and probably a few other companies make a radiator flush specifically for this.
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Old February 17th, 2008, 07:32
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kf_chris kf_chris is offline
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Re: seafoam in the radiator?

I wouldn't do that.
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Old February 17th, 2008, 07:44
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birchlakeXJ birchlakeXJ is offline
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Re: seafoam in the radiator?

Absolutely NOT!

As JNickel101 mentions, use a product designed for flushing cooling systems. There are a number of them out there but they do vary in strength. How bad is your coolant? Is it brown, rusty, etc? Then you may want a stronger solution. Spend some time reading the back labels on the stuff on the shelves......
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Old February 17th, 2008, 08:30
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copper204 copper204 is offline
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Talking Re: seafoam in the radiator?

I remeber reading once about putting a specific calcium cleaner in the radiator as a flush? The only thing I remeber is TSP? It comes in a green yellow and I believe blue box. It was on one of the forums for radiator flushing?
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Old February 17th, 2008, 08:58
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RichP RichP is offline
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Re: seafoam in the radiator?

Two methods, Prestone 7 hour flush, you're in Florida so you can get away with it if you get a few days where it will NOT freeze down there
The second is Vinegar, some here swear by it. Do a search on vinegar flush, I think it's a 50/50 mix of white vinegar and water, couple of hours then flush and back flush.
I've always used the prestone stuff myself.
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Old February 17th, 2008, 09:50
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Re: seafoam in the radiator?

Whatever you do, fill it back up with distilled water when you put antifreeze/water back in. Distilled water is only $1/gallon and doesn't have minerals and impurites that can cause rust or brownish goop in the cooling system.
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Old February 17th, 2008, 15:25
lawsoncl lawsoncl is offline
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Re: seafoam in the radiator?

Seafoam is an oil base. As I recall the proportions were something like 50% mineral oil, 30% naptha, and 20% isopropyl alcohol. I don't believe any of those belong in you coolant. You want something that will eat the deposits and not attack the rubber coolant hoses.
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Old February 17th, 2008, 16:25
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Re: seafoam in the radiator?

I've run vinegar through my old RVs water heater, it really flushes out the calcium build up.

For oil contaminated coolant, Detroit Diesel recommends Calgon. It works. Used that on buses when the trans or the oil heat excahngers would leak into the cooling system.
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