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Old 01-02-2018, 04:48 PM
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edwardc edwardc is offline
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And don't even consider automotive radiator "stop leak"! Aside from it possibly aggravating partially blocked cooling passages, in a raw water system, it will get flushed out almost immediately, before it can do much of anything. Its not even a good "band aid".

Fresh Water Cooling (FWC) is a great thing to do for your engine, but in order to get the best benefit from it you need to have cleaned and flushed out the block, head (unless new), and manifold first.
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