Miata Mailing List: September 1993, Message #97
sponsored by



     


   From: Bill.Allen@metrokc.gov
Subject: RE: Vacation, tan, top, crash, oil/filter/washer, and Shell Gas
   Date: Mon, 13 Sep 1993 18:44:10 -0400

>OIL/FILTER CHANGES:  One positive point:   
>the oil apparently drains out of the filter when the engine is shut off, so it
 
>doesn't spill oil all over the place when you remove it.


Steve,
My understanding is that the Mazda oil filter has a check valve in it to
prevent oil draining out of the engine.  This allows more instantaneous
lubrication on starting. Starting is supposed to be the worst wear period for
an engine. I notice some oil spills from the Mazda filter each time I change
one.  Perhaps you are not using factory filters?  Do you get valve lifter noise
on starting?
Bill Allen - Puget Sound Chapter - Seattle