delay101
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- Mar 28, 2022
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- Buick Ownership
- 2008 Buick Lacrosse Super


I bought this in a bulk lot (5 for $22) on ebay. I came across this filter when looking for OEM AC Delco filters and when this came up, I cross-referenced the numbers and it said it matches with the modern-day PF47E AC Delco filters. After sending one of them to a YouTuber who takes apart oil filters and reviews them, he sent me this message:
"I wouldn't use it. It has lots of filter media but it's on the thin side and it doesn't have an anti-drain back valve so it better be mounted vertically also no bypass valve so it was made for engines with their own bypass valves"
I just picked up this 3.8 '08 Buick Lacrosse CXL and I'm aware of them having a built-in bypass valve (unless I misunderstood?) and I know the filters are mounted at an angle from what I've seen in oil change videos, but what gets me is the filter not having an ADBV.
From my own experience, I've only had one other GM vehicle and it was a '94 SC1 where I used the cheapest oil and filters I could get for the 3000 miles oil changes and I never had a problem with it. For this vehicle, during the summer I plan to use conventional oil for 3K OCI and full synthetic for 5K OCI with a premium filter for these western Illinois winters.
What do you guys think? Should I toss them to play it safe or use them as I have planned?
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