![]() Apparently, even though most vehicles will never need such a thing, no vehicle is automatically excluded from this, mostly due to casting sand issues. Coolant filter stops that from ever happening.īasically, a coolant filter is something for the trash to clog, rather than your heater core, if there is indeed trash in your system. However, if you have paper towels available, it would be a waste of a coffee filter, as they serve. Second, you can use a coffee filter for most things where you would use a paper towel or other fibrous paper (like newspaper). Any abrasive use of them when wet will see them fall apart rapidly. Some cars (Honda) get blocked cores for no good reason at all, and have TSBs advising CLR flush to fix this problem. First, coffee filters are very fragile when wet. Lot of Jeep owners install coolant filters to prevent this from blocking their heater cores. Chrysler and Ford have had their own adventures with this. The filter would plug about every 2 months instead, until it finally stopped after 4 filter changes.Ĭasting sand escaping from the casting after manufacture is another problem that can occur. ![]() We poked out the rubber "orifice" limiter, and ran it as a full flow filter leading into his heater core. Coolant filter saved him from ever having to do that again. I flushed all of the offending engines "until clear" many times, and the scum always came back.įriend of mine had it so bad, that he could count of his heater core blocking after 6 months, even after doing CLR and citric acid flushes. Florida has a lot of vehicle owners who subscribe to the "you don't need antifreeze in Florida" mentality, not realizing they are inviting electrolytic corrosion. My case was also one of a poorly maintained cooling system. In my case, rust flakes, stop leak flakes, and whatever the heck else I have seen that I can't identify. Unless an engine was manufactured and maintained 100% correctly, there is a lot that might need to be filtered out of coolant. What needs to be filtered out of coolant?
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