The coolant filter is a great thing and I'll never own another car without one. That said, Dex Cool, once it forms its beach sand sludge is proving to be very persistent. But it seems to flake off little bits here and there which then get caught by the filter. The problem is that it appears that sandy sludge builds much much faster than I had previously thought. Im pretty sure I'll find more of it around the #6 cylinder once I get that head off.
But the coolant filter is a great thing and I love mine and I'll have one on my vehicles from here out no matter what coolant its running. If you stop and think about it, everything else has a filter; transmission, fuel, oil, why not the coolant.
Some will argue that the cooling system is a closed system and doesnt need one. I submit so is the transmission but it still has one.
