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Re: Clacking Noise.....

  I replaced the oil filters on the '84 4000Q and the '87 5000CSQTW last
  weekend with _OEM Import_ brand oil filters, while performing the ritual
  spring oil changes. I'd always used Fram in the past. I had hoped to
  reduce/eliminate the lifter noise on startup, as these "OEM Import"
  filters claimed to incorporate a drain-back valve. Well, *NO* difference!
  Very disappointing. I don't know if the filters' just have bad drain-back
  valves or if it's all just BS, and these 5-cylinder engine are just going
  to have noisy lifters on start-up no matter what.....