mk842766
Well-Known Member
The effectiveness of a can shouldn't really be based on what it catches, but rather what it misses and allows to re-enter the intake. Unfortunately, there really isn't a way to quantify what's missed, but if the outlet hose going back to the manifold is dry, that would be an encouraging sign.
The reason that the amount caught isn't an accurate measure is because the contents of the can primarily consists of (1) actual blow-by product that is successfully condensed and contained by the internals of the can, plus (2) condensation that forms from simple temperature differences.
The amount of actual blow-by that passes into the can is affected by vehicle condition, driving habits, oil volatility, environmental conditions. The amount of condensation is also affected by mounting location, can design, can volume, can fill level, filter contamination level, and possibly even hose, union, and connector construction, diameter, length, and routing.
Ultimately, a can that "catches" a lot could just be condensing lots of moisture from the environment. Regardless, if it is letting oil pass through back into the manifold, it doesn't matter how much you find in the can.
The reason that the amount caught isn't an accurate measure is because the contents of the can primarily consists of (1) actual blow-by product that is successfully condensed and contained by the internals of the can, plus (2) condensation that forms from simple temperature differences.
The amount of actual blow-by that passes into the can is affected by vehicle condition, driving habits, oil volatility, environmental conditions. The amount of condensation is also affected by mounting location, can design, can volume, can fill level, filter contamination level, and possibly even hose, union, and connector construction, diameter, length, and routing.
Ultimately, a can that "catches" a lot could just be condensing lots of moisture from the environment. Regardless, if it is letting oil pass through back into the manifold, it doesn't matter how much you find in the can.
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