NEW??? AC Delco oil filters

[Alan Roehrich]

Originally Posted by Doug Domm

I have been using the AC Delco PH35 oil filter for many years now and recently went to purchase a new case of filters only to find the NEW??? Ph35 filter to be blue instead of white and they certainly appear from the outside to be much lighter and cheaper built. I have not cut one open and did not buy these NEW??? ones as I found a case of old stock filters and purchased them instead. I have been told by one dealer they are the same as the old just a new supplier and yet another dealer said they are not at all the same as the old and are from a different supplier and not sure if this is temporary or a long term change. Can anyone share info they have as to what is really going on? Also one of my local GM parts managers called me asking if I knew anything about a PH35"L" filter he found in his listings. It is referred to as a high efficiency filter and retail list prices at $29.00 Cdn. Just what is a high efficiency filter? Is this the General's version of the Moroso oil filter?

Doug, do a search, in this forum, on oil filters, using the numbers PF 35, PF 1218, PF 932, and PF 2232. It should give you all the information you can possibly stand.

[FED 387]

The main difference between a PF35 and the PF 35L is the filtering medium and the size of the microns it will filter---I believe the "L" uses a synthetic mesh type of element whereas the plain PF35 uses a paper media also there is less restriction or build up of pressure resulting in a across the filter from the inlet vs. the outlet.. IMO the 35 L is what most circle track guys around here and a few knowledgable drag racers have been using---Do not know if you have say a PEP Boys or Murrays Auto parts stores in your area they usually sell for about $ 8 in the Chicago area but any GM dealer can order them for you--- Not sure how customs works with you guys but I would be happy to buy/ship a case up to you for whatever my cost for filter/shipping came out to be--Also if you can get ahold of a GM performance catalog it should give you some more info too----GM part # 25013454--- Any ??? please contact me Comp 387

[Doug Domm]

Alan, Just checked that out and I read it as the AC filters are blue in color however here in Canada they have always been painted white with a painted logo and yes have the metal tube inside. These NEW blue ones also have the metal tube inside but just appear to be constructed on the light side. Maybe these are the ones you have always seen but are definately new to me and just seem cheaply made compared to the GOOD OLE Canadian ones. How about that high priced AC PH35L? Has anyone got anything to share on that filter?

[Doug Domm]

Thank you comp387 for the offer. The "L" filter over the counter retails for $29.00 here and my cost on it is just short of $18.00. I would still like to hear more about this filter. I am now wondering if there is a difference between the US PH35 and the Canadian PH35. Maybe the "L" filter is different too.

[FED 387]

From the GM performance parts catalog

"25013454 -synthetic oil filter

The PF-35L heavy duty spin on oil filter can replace any PF-25 or PF-35 filter on 1968-up Chevrolet V-8 engines. It has a 100% synthetic element that is rated at 12 microns. Its synthetic glass filter media provides finer filtration than conventional cellulose(paper) filters.The individual strands of synthetic glass used in the PF35L are smaller and more consistent in sizethan cellulose fibers.These glass fibers are supported by a polyestersheet laminated on both sides,and the pleated synthetic filter element is backed by a metal screen. This extremely efficient filter can reduce engine wear by 75% compared to conventional filters without restricting the flow of oil"----OK???? Comp 387

[neb5445]

I have been happy with the Baldwin Racing filter. The can will withstand the high pressures a racing motor produces and filters as well as any out there.