I looked at a oil flow diagram which others can just google. Oil flows from outside to inside like someone mentioned earlier. The 4 plugs i have on oil adapter plate all measure the flow before going into the filter. I have a filter that is suppose to be designed for synthetic oil so maybe it restricts the flow more also. IS synthetic oil made up of smaller molecules than regular oil am wondering and the filter is designed to be more restrictive. Next time i change filter i guess i will find out and let yall know.
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