Edward Duntz wrote: > I just looked at an STP and a Fram that I have, and I see rubber under > the holes on top as well.
Now I'm no oil filter expert but, so I've been told, some department store filters don't have the anti-drainback valves and others, such as Fram, have them but they don't work as well. Years ago I used Fram filters and found that, for me anyway, I had a much more frequent problem with lifters bleeding down than I've had with Mann or Mahle filters. Mike '85 GL Westy 2.1 '84 GL 7 pass '84 Westy '84 Westy (parts) |
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