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Alan Roehrich · 05-10-2010, 06:28 PM

The PF35L is often found with a perforated steel core. However, the media is too fine for a high flow application.

The oil filter for a Duramax seems to always have a perforated steel core, I have yet to find one without it. I think the number is PF2232. It fits small and big block Chevy engines. Never had a problem with one, either.

The K&N filters are good, never had a problem with one, and they can often be found at the chain stores if you need a filter and the NAPA or CarQuest is either closed or too far away.

05-10-2010, 06:28 PM	#12
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,126 Likes: 1,583 Liked 1,888 Times in 423 Posts	Re: Oil Filter? The PF35L is often found with a perforated steel core. However, the media is too fine for a high flow application. The oil filter for a Duramax seems to always have a perforated steel core, I have yet to find one without it. I think the number is PF2232. It fits small and big block Chevy engines. Never had a problem with one, either. The K&N filters are good, never had a problem with one, and they can often be found at the chain stores if you need a filter and the NAPA or CarQuest is either closed or too far away. __________________ Alan Roehrich 212A G/S