Oil Filter
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
As far as I am aware the PF 25 is obsolete ( I can't find any) .. and replaced by the 454.
The K&N 2002 is a nice filter with good flow that has a 1" nut on the bottom for aiding removal... but is pricey at about $14.
Mobil 1 also makes an extended life Filter M1 -111 at around $12
Napa Gold FIL 1069 at $5.99 works very well
The Wix filter gets ggod marks for flow and filterability at about the same price.
It is reallya bout a brand you trust and how much you want to pay.
The K&N 2002 is a nice filter with good flow that has a 1" nut on the bottom for aiding removal... but is pricey at about $14.
Mobil 1 also makes an extended life Filter M1 -111 at around $12
Napa Gold FIL 1069 at $5.99 works very well
The Wix filter gets ggod marks for flow and filterability at about the same price.
It is reallya bout a brand you trust and how much you want to pay.
Elite Torch Red Member
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Hmm, mine are PF 52 which replaced the PF 51.
PF 25 is for the C5 I believe.
PF 25 is for the C5 I believe.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Pro
Joined: Oct 2005
Posts: 721
Likes: 1
From: Charlotte NC, behind someone going 10 under the speed limit
Originally Posted by Larry64
My owners manual filter is a PF25, but the parts store X-ref is PF 454. What is the right move, only use AC Delco, 4 GM's in the drive way. 1990 L-98. 
Elite Torch Red Member
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Originally Posted by 88redvert
the stock filter for my "88 L 98 is an AC Delco PF 25
Drifting
Joined: May 2003
Posts: 1,979
Likes: 48
From: Lakeport CA
Napa Gold, made by Wix, most things I've seen by folks who cut open filters (way too much time on their hands?) show that Wix is one of the better, more filter material, metal pressure valve & more holes in the steel peforations area. I also seldom go a full 3K miles between Mobil1 changes.
Team Owner
Joined: Oct 2000
Posts: 96,443
Likes: 9
From: Fort Knox, KY
Cruise-In IV Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
Cruise-In VIII Veteran
My local AutoZone carried the PF52 last year when I changed my oil. As far as I know GM still makes 'em.