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#999971 - 10/19/07 01:37 AM Re: ACdelco PF47 vs PF52 [Re: pcoxe]
The_Champ Offline

Registered: 09/13/07
Posts: 191
Loc: So. IL

I've been using the larger filter on the wife's 98 Monte Carlo 3800 with no negative effects. They cost the same as the shorter filters. As far as I'm concerned, it should have had the longer filter from the factory! Some bean counter probably convinced GM they could save a half-cent on a shorter filter, which would add up to millions of dollars per year in profits for GM. Nothing to lose and much to gain by going to the longer filter!

The reason there are short and long filters it not because they are cheaper to make, but some vehicles cannot use the longer version due to lack of room and clearance around the oil filter. This is why there are short and long filter versions.

#999972 - 10/19/07 02:13 AM Re: ACdelco PF47 vs PF52 [Re: The_Champ]
Mike_dup1 Offline

Registered: 11/17/02
Posts: 3013
Loc: USA-Michigan
There are 1,197 vehicle applications for the 52, mostly trucks 1981 - 2005
There are 2,231 vehicle applications for the 47, mostly cars 1975 - 2007

Source - AC Delco Vehicle list by part number
2012 Sierra Denali CC 6.2L AWD
2009 Cadillac CTS4
2010 John Deere X728SE
2006 Honda Rincon 680

#999973 - 10/19/07 02:36 AM Re: ACdelco PF47 vs PF52 [Re: mstrjon32]
Mudcat Offline

Registered: 04/29/07
Posts: 91
Loc: Dixie
What made you run the UPF-52 instead of the regualr PF-52? Did you ever notice any difference in performance/UOAs?

#999974 - 10/19/07 06:51 AM Re: ACdelco PF47 vs PF52 [Re: Mudcat]
BuickGN Offline

Registered: 10/18/07
Posts: 3756
Loc: CA
I've been using the ACDelco 52 since 1996 on the GN. I have very high cold oil pressure, close to 100psi and for whatever reason, the bigger 52 seems less prone to blowing off or ballooning.
84 Buick GN. [email protected] old times. 602hp 620lbs.
06 Acura TL. Lots of suspension and brake mods.

#999975 - 10/27/07 01:20 AM Re: ACdelco PF47 vs PF52 [Re: BuickGN]
Benzadmiral Offline

Registered: 10/12/05
Posts: 4760
Loc: Da Swamp
So, just to clarify --

If your 3.8 engine takes an AC Delco PF47, a PF52 will fit (unless there's something peculiar about the engine compartment -- something in the way)? And if you use a Wix or Napa Gold 51036, that's the same as the PF52?
* *
-- Paul W. (The Benzadmiral)
('11 Buick Regal CXL, charcoal/cream, 2.4L NA)

#999976 - 10/27/07 11:15 AM Re: ACdelco PF47 vs PF52 [Re: Benzadmiral]
ron350 Offline

Registered: 04/25/06
Posts: 257
Loc: Alabama
Paul W.

Yes Wix 51036 is the same as the Wix made PF52.
A member here cut these two filters open and they appear to be identical inside.
Things can get confusing because Champion labs also makes a PF 47 and PF 52 for AC Delco.
Buy a PF 52 at a GM dealership and it can be made by Champion or Wix.

Where I live O’Reilly auto parts used to have Wix 51036 for $5.00 and AC Delco PF-52 for $3.50.
If you run across any AC Delco filters that do not say Duraguard on the filter and the box leave then alone.
These filters were never intended for sale in the US.

#999977 - 10/27/07 04:05 PM Re: ACdelco PF47 vs PF52 [Re: ron350]
Benzadmiral Offline

Registered: 10/12/05
Posts: 4760
Loc: Da Swamp
O'Reilly's still carries Wix filters: The most commonly bought ones are right out on the shelf next to the Fram and Mobil 1 filters. That's where I bought the Wix 51040 that's on the car right now.

I suspect I'll have to ask at the counter -- or go to a NAPA store for a Gold filter -- to get a 51036 for my next change.
* *
-- Paul W. (The Benzadmiral)
('11 Buick Regal CXL, charcoal/cream, 2.4L NA)

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