Catch cans... Help me understand.
My opinion is to get one, how can it hurt?




" Particulate filters: In a compressed air system, these filters are typically installed before aerosol-trapping (coalescing) filters. Particulate filters are designed to trap solid particle contaminants down to 5 microns and the separation of bulk liquids. The key work here is “bulk”. This type of filter, which is often found in home supply stores as a general purpose filter for compressed air systems, removes liquid water and oil.
It does NOT effectively remove air-born oil (aerosols), which is very likely to be flowing past the PCV valve and into the engine intake. The other thing I can’t mention enough is the fact that any filter that has a clear, polycarbonate bowl is a bad choice as an oil catch can for 2 reasons:
1. The typical clear bowl – equipped filter has maximum operating temperature of 120 or 125° F. An LS1 engine bay can reach temperatures beyond 140° F, quite easily, potentially causing the seal between the bowl and the inlet/outlet component to leak."
In addition, many of these types of filters specify that they should not be used with synthetic oils.
For these reasons, a metal bowl is absolutely necessary when it comes to filters that are installed under the hood.
Dave












