Re: CLR to clean out Engine Waterways
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As always, I think Mr. PB is right on target. Using a chemical flush every year or two was probably sufficient to keep a cooling system in good condition for perhaps the useful life of the engine until such time as a rebuild was required. But when neglected to the point of large accumulations of salt and rust buildup, no "snake oil" in a can is going to reverse the ravages of time and neglect.
For those of us that live in areas where we keep antifreeze in year-round, a reasonable interval in my opinion to flush the system and replace the antifreeze is perhaps every other year. Remember that though ethylene glycol doesn't loose it's freezing point depression properties over time, the corrosion inhibitor packages in it do have a finite life time.
Posted on: 2010/12/4 10:23
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