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Best Oil Filter

This is a discussion on Best Oil Filter within the General Help forums, part of the LSx Technical Help Section category; Originally Posted by 35thAnniZ28 whats wrong with fram?..only reason i like em is for grip I like them for grip ...

  1. #41
    Rollo Tomassee AKIRA's Avatar
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    Quote Originally Posted by 35thAnniZ28 View Post
    whats wrong with fram?..only reason i like em is for grip
    I like them for grip too and I usually use them. I guess I am fucked.

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    old timer blue02Z's Avatar
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    Quote Originally Posted by Smkn_TA View Post
    I am willing to wager my trans am that my mobil 1 filter is not going to collapse. The trans am filter is extremley small considering engine size, and yes if you put it on a highly modified engine that has a lot of flow it probably will. But that is just common sense. Everything has limits. Put an amsoil filter for the trans am on a drag racer it is going to have issues also. Don't expect more out of products than reasonable. My grandpa has been using fram oil filters his whole life and swears by them, and he is 91. Any idea how many oil changes that is, every 2k miles he changes it. Never once had a failure with any of them, and his truck had over 250k miles on it, all fram oil filters.
    trans ams, camaros, and almost every pre 99 1/2-07 GM V8 take that same filter, its not just for a t/a. You can get a filter for a trailblazer with a 4.2 and it is the same filter except longer. that is what i do. more filtering area.

  3. #43
    Senior Member INMY01TA's Avatar
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    AC Delco pf 61 here.

  4. #44
    old timer blue02Z's Avatar
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    Quote Originally Posted by INMY01TA View Post
    AC Delco pf 61 here.
    yeah that is the part number for the GM 4.2 I6 that is in the trailblazer, envoy, bravada, and rainier

    same thing i use but in amsoil

  5. #45
    Senior Member 35thAnniZ28's Avatar
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    Quote Originally Posted by blue02Z View Post
    trans ams, camaros, and almost every pre 99 1/2-07 GM V8 take that same filter, its not just for a t/a. You can get a filter for a trailblazer with a 4.2 and it is the same filter except longer. that is what i do. more filtering area.
    i just might check that one out

  6. #46
    old timer blue02Z's Avatar
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    Quote Originally Posted by 35thAnniZ28 View Post
    i just might check that one out
    okay, its a pf 46. the only v8's that doesn't take it are the duramax, vortec 350 (5.7), and the 8.1 (502), also 7.3 (454)

  7. #47
    Senior Member 35thAnniZ28's Avatar
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    kool thx

  8. #48
    Member {FzS}BlacKMagicK's Avatar
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    Ok, for you Fram users, I will post not only what you see when you take apart a Fram, but straight from the horse's mouth a letter from an engineer for Fram k?

    Here you go...


    Fram
    These filters are manufactured by Allied Signal, Inc. See this email from an Allied Signal production engineer.

    Russell,
    I obtained great satisfaction from reading your oil filter survey.

    I worked for two years as the oil-filter production line engineer in
    an Allied-Signal FRAM facility and I can confirm every bad thing you
    have said about FRAM automotive filters. That's from the horse's
    mouth, as it were.

    I'm also a quality engineer and can confirm that FRAM applies no
    quality control whatsoever to any of the characteristics for which we
    buy oil filters. I frequently saw filter designs which were barely
    capable of meeting J806. Many of FRAM's designs will block and go to
    bypass after trying to filter very little contamination. There were
    often leakage paths at the paper end discs when these were not
    properly centered on the elements. Some designs had the pleats so
    tightly packed against the center tube that they would block off in no
    time. I had discovered that the FRAM HP1 that I had been buying for
    about $20 Cdn was EXACTLY the same as a PH8 inside - the only
    difference being a heavier can - no advantages in flow capacity. The
    paper filtration media was of apparently poor quality and the process
    of curing the paper resin was very inconsistent - elements would range
    from visibly burnt to white. FRAM's marketers admitted that there was
    just about no way the public could ever prove that an oil filter
    contributed, or did not prevent, engine damage. The only thing FRAM
    tested for was can burst strength. Another problem that they have from
    time to time is in threading the filter base - often there are strands
    of metal left behind on a poorly formed thread.

    I have not used a FRAM filter since I started working there. Their
    claims are entirely and completely marketing bullshit.

    If people really want to protect their engines, a good air filter is
    vital (which excludes FRAM from that list as well) and a combination
    of one depth and one full-flow hydraulic filter, together in parallel,
    will do the job of filtration to perfection.

    Thanks for doing a great job in trying to get the truth out! You can
    quote me anytime.

    [name omitted to protect submitter]

  9. #49
    Member {FzS}BlacKMagicK's Avatar
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    Now here is what you would discover if you cut one open...

    Fram Extra Guard PH8A
    This filter cartridge has a small outside diameter with a rather low filter element surface area (193 sqin), and features cardboard end caps that are glued in place. The rubber anti-drainback valve seals the rough metal backplate to the cardboard end cap and easily leaks, causing dirty oil to drain back into the pan. If you have a noisy valve train at startup, this filter is likely the cause. The bypass valves are plastic and are sometimes not molded correctly, which allows them to leak. The backplate has smaller and fewer oil inlet holes, which may restrict flow.

    The telltale signs for a Fram Extra Guard are: It has 8 small holes for the oil inlet and a thin, cheap looking backplate, and is currently stamped with a "2Y". There are 5 very small crimps holding the gasket in place. If you look into the center hole all the way to the top of the filter, you will see a kind of "button" in the end cap of the cartridge (which looks like it's made of metal from there). This is the plastic bypass valve.



    Average Retail Price $3
    Cartridge Length 4.125 inches
    Cartridge Outside Diameter 3.000 inches
    Cartridge Inside Diameter 1.375 inches
    Cartridge Pleats 34
    Cartridge End Cap Type Cardboard
    Anti-Drainback Valve Type Nitrile rubber diaphragm
    Bypass Valve Type Spring-loaded plastic
    Element Type Paper media, stamped metal seam
    Element Length 47.5 inches
    Element Width 4.063 inches
    Element Surface Area 193 square inches
    Shell Thickness 0.015 inches
    Backplate Thickness 0.089 inches
    Gasket Type Nitrile rubber

  10. #50
    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by blue02Z View Post
    okay, its a pf 46. the only v8's that doesn't take it are the duramax, vortec 350 (5.7), and the 8.1 (502), also 7.3 (454)
    46 and 61 are the same thing only 61 is a lil longer. More filter media and more oil capacity can't be bad thing.

  11. #51
    Member {FzS}BlacKMagicK's Avatar
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    Now here is the AC delco Duraguard PF2 seems to be an especially good filter for the price, except one thing which I'll show in a minute, notice how he talks about the spot welds on the filter, that is relevant, you'll see why later.


    AC Delco
    Duraguard PF2

    The filter cartridge has a large outside diameter with deep pleats. At first glance, it appears to have little filter element media, but the surface area measure was surprising: 315 sqin. The unit had a solid top end cap because the bypass valve is at the bottom, which is a well constructed spring-loaded steel with a nitrile seal design. The nitrile rubber diaphram-type anti-drainback valve doubles as the seal between the bypass valve and the cartridge. The only drawback to this design is that the bypass valve seats metal-to-metal against the backplate. This could allow oil from the clean side of the filter to seep back into the oil pan, but it wouldn't allow the dirty oil in the filter to seep back. Oil that is in the main gallery usually leaks out through the main bearings anyway while the engine sits. One disadvantage to the AC Delco is that the anti-drainback valve seals against a rough backplate. I noticed that if I blow air through the oil outlet, air slowly leaks past the valve. Even so, I have received testimonials that the AC Delco stops the valve train noise problems associated with the Fram filter, so it may seal fine once it has been exposed to oil (it worked fine for me). The Wix and Purolator filters seal perfectly.

    It seems that AC Delco no longer makes this filter for the Ford 5.0L (or the Chrysler 2.2L/2.5L for that matter). I have not been able to find it in any location near me.

    The telltale signs for an AC Delco filter are: Five large holes for the oil inlet and 6 spot welds on the rim surrounding them. There are no crimps holding the gasket in place. When you look through the inlet holes, you can see the metal bypass valve with its 12 small holes and the black anti-drainback valve diaphragm around it. Through the center outlet hole, you can see the spring for the bypass valve.




    Average Retail Price $3
    Cartridge Length 4.625 inches
    Cartridge Outside Diameter 3.375 inches
    Cartridge Inside Diameter 1.375 inches
    Cartridge Pleats 36
    Cartridge End Cap Type Stamped steel
    Anti-Drainback Valve Type Nitrile rubber diaphragm
    Bypass Valve Type Spring-loaded steel
    Element Type Paper media, glued seam
    Element Length 70.0 inches
    Element Width 4.500 inches
    Element Surface Area 315 square inches
    Shell Thickness 0.015 inches
    Backplate Thickness 0.100 inches
    Gasket Type Nitrile rubber

  12. #52
    old timer blue02Z's Avatar
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    Quote Originally Posted by INMY01TA View Post
    46 and 61 are the same thing only 61 is a lil longer. More filter media and more oil capacity can't be bad thing.
    yeah, thats what i'm saying. i just get an amsoil filter for a trailblazer and it is great. i also use a full 6 qts instead of the usual 5.5

  13. #53
    Member {FzS}BlacKMagicK's Avatar
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    Now what it seems has happened is AC went to an offshore company to manufacture their filters cheaper.


    AC Delco PF35L Filter Warning
    This is a note from Jeff, a Bay Area Listmember:

    Just a warning to the newbies and a reminder to the oldies, the PF35L's you're seeing/buying may be the "bogus" variety that Delco is foisting off on an unsuspecting public. I did some fact-finding last year after Chris Chow noticed that the PF35L's I forwarded to him (from Dal at Lambert Buick) didn't match the one he already had. The new filters were much lighter and generally less sturdy appearing, and didn't have the readily visible spot welds on the top.

    Delco swears that the filtering ability of the "new" PF35Ls is just as good as the originals, but I don't think they're being entirely honest with us.

    This all happened because Delco switched to an "offshore" plant for the filters. They are taking the product from this new source that comes the closest to the PF35L specs and labeling it as a PF35L. Caveat emptor.



    And then...




    AC Delco UltraGuard UPFL400 & UPF2 (oversized)

    UPDATE! (3-15-02) UltraGuard may no longer be available. We have two items on that subject:
    Here is a letter from a SHO Club member with his concerns, and a reply from Tim Wright:

    Bill Turnau wrote:
    As a SHO club member, I would like to submit a recent observation relating to the outstanding article Tim Wright did on Oil & Oil Filters. This commentary is submitted as reason for a possible Ac Delco Ultraguard Gold Filter Warning.
    I recently purchased about 2 dozen AC Delco Ultraguard Gold oil filters.
    The Filter numbers are UPFL400A, UPF44 & UPF1250. Tim in his article stated
    the can wall thickness of the AC Delco Ultraguard Gold was just under the Mobil1 filter, which Tim stated is .0195 inches. I recently changed oil in my
    2001 F350 V10 & 2000 Mountaineer 5.0 V8. The case of the first UPF1250 I
    installed deformed/bent/collapsed as I hand tightened it on the F350. I removed
    the filter, cut open the case & found the wall thickness to be .0135 & it
    had 36 pleats & was visually inferior to the removed UPF1250 which had a wall
    thickness of .0165 & 37 pleats. The factory equipped PF44 AC Delco filter
    case on my Corvette measured .0150. A Motorcraft FL820 measured .0150. I
    have not at this time compared the UPFL400A on my SHO to the UPFL400A's I
    just purchased---but I will. All measurements taken with a dial caliper.
    What does all this mean---who knows. All I know is that my recent
    purchase of Ac Delco Ultraguard Gold filters appear to be the victim of the bean
    counters.
    Should it collapse in your hands when being installed, is it worthy of a
    place on our SHO's? Should it rank among the best?
    I'll probably go back to either a Mobil 1 or K&N filter.
    Bill Turnau

    Tim Wright responds:

    Bill, I recently went shopping for AC Delco UltraGuard filters where I have
    purchased them before and found none. It seems they are no longer being
    made. The AC Delco UltraGuard for SHOs we purchased and opened for the article
    were very well made. It is possible that the filters were cheapened before they were discontinued.

    It is a shame that a ultra high quality automotive oil filer may have changed its quality, then was
    discontinued. As Don noted the scope of our survey was for SHO oil filters only and our enthusiasm
    for AC oil filters was limited to AC Delco UltraGuard only.

    AND THIS NEWER UPDATE, ALSO FROM TIM:
    I contacted the manufacturer of K&N, Mobil 1, and AC UltraGuard oil filters.
    They are all made in the same factory. As of December 2001 AC UltraGuard
    oil filter are officially no longer being made. They don't currently have
    plans to sell the same technology under another label. It was an expensive
    filter to make and sold at the same price point as the K&N and Mobil 1 so it
    was not a lucrative filter to sell or manufacture.
    Damn, if you find old stock, grab 'em. Try Auto Zone.
    I am told the semi synthetic media in Mobil 1 is not identical to the K&N
    media. The K&N has more media but filters down to 15-18 micron. The Mobil 1,
    looks the same but filters down to 10 micron. The UltraGuard media filtered
    down to 8 micron was 100% synthetic and filter at high flow rates.
    One new premium filter to consider is the Bosch Premium, which is in the
    same class as the Mobil 1 and K&N. I didn't know that but it is also a good filter.
    I don't know why AC pulled out of the premium oil filter market. I
    understand it was not as profitable as selling $40,000 pickups but I have a
    theory that AC is not a name long associated with quality oil filters. I
    would avoid any AC oil filter if I didn't know about the UltraGuard line.
    Their feeling may be it is too small a niche market, my feeling is it
    suffered from being associated with the AC reputation.
    Tim Wright

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  15. #55
    Grand Imperial Wizard Sarge's Avatar
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    On the AC Delco post....never lose sight that there are only like 3 manufacturers for all filters in the world now. And they are damn near all outside the US for some or all of the processes in the manufacturing/assembly process......
    What you are looking for is not where they are manufactured or assembled....but the design/materials aspect of each filter....

  16. #56
    Grand Imperial Wizard Sarge's Avatar
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    Do you know who manufactures this?

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    Yes I do. Dave Fisher.

  18. #58
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    Quote Originally Posted by Sarge View Post
    On the AC Delco post....never lose sight that there are only like 3 manufacturers for all filters in the world now. And they are damn near all outside the US for some or all of the processes in the manufacturing/assembly process......
    What you are looking for is not where they are manufactured or assembled....but the design/materials aspect of each filter....
    Must be, my order came today,

    The Amsoil air filter is stamped in ink - Made In USA
    The Amsoil oil filter stamped in ink - Made In Mexico
    The Wix fuel filter stamped into metal and in ink - Made In USA

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    i've always used k&n, i've had everything but bad experiences with those, they are great with twice of the filtering space, deffinetly k&n is the way to go.

  20. #60
    Member {FzS}BlacKMagicK's Avatar
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    Quote Originally Posted by 81smblk View Post
    i've always used k&n, i've had everything but bad experiences with those, they are great with twice of the filtering space, deffinetly k&n is the way to go.
    K&N is the same filter as Fram...garbage.

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