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    AC Delco Ultraguard no longer metal core or silicone ADBV

    Went with Carquest Premium! I should state my reasoning for wanting a silicone ADBV was that it was taking 10 seconds minimum to see oil pressure (LS engine) after letting it sit overnight. This gets progressively worse with colder temps. One cold start at -10f took 30+ seconds and was really...
  2. S

    AC Delco Ultraguard no longer metal core or silicone ADBV

    Learned my lesson early. going to stock up once I find the one
  3. S

    AC Delco Ultraguard no longer metal core or silicone ADBV

    Wanted to try a premium filter for once so I lurked the forums for a while and decided to stick with an 'oem' premium with the AC Delco UPF48r after reading about the silicone ADBV and metal core. Ordered from NAPA and picked up this afternoon. Checked it when I got home and noticed none of the...
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