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Internet Message Format  |  1993-01-06  |  865 b 
  1. Path: sparky!uunet!gatech!rutgers!att-out!cbfsb!cbnewsb.cb.att.com!mgp
  2. From: mgp@cbnewsb.cb.att.com (michael.g.petersen)
  3. Newsgroups: rec.autos.tech
  4. Subject: Re: AC Delco oil filters?
  5. Message-ID: <1993Jan6.202237.14331@cbfsb.cb.att.com>
  6. Date: 6 Jan 93 20:22:37 GMT
  7. References: <43559@gremlin.nrtc.northrop.com> <1993Jan4.120644.1@skyler.mavd.honeywell.com> <43654@gremlin.nrtc.northrop.com>
  8. Sender: news@cbfsb.cb.att.com
  9. Distribution: usa
  10. Organization: AT&T
  11. Lines: 9
  12.  
  13. In article <43654@gremlin.nrtc.northrop.com> jslee@nrtc.nrtc.northrop.com (John Lee) writes:
  14. >
  15. >  ... The PF47 is anti-drainback valved; the PF40 is not.  ...
  16.  
  17. GM specifies the use of the PF47 oil filter with thier 1988 Bonniville
  18. with the 3800 V6. The threaded end is pointed straight upward.  Why
  19. would this require an anti-drainback valve?
  20.  
  21.                                         Mike Petersen
  22.