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Intrepidation

Info On Oil Filters

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This is from LH forums. Pretty neat info if you're looking for oil filters (besides the Mopar one, unless you own a Mopar).

Oil Filters - Dissected

I was wondering what the differences were between some of the current oil filters. The study done at Engine Oil Filter Study is quite dated. So, I bought some oil filters from the local stores, grabbed my hacksaw and away I went. All filters had an anti-back flow gasket.

ALL.jpg

LineUpout1.jpg

LineUpout2.jpgLine-UpOut.jpg

LineUpout4.jpgNapa2.jpg

Findings:

The basic Fram is still crap. Fewest pleats and therefore least amount of filter area. Cardboard end-caps.

Fram05.jpg

The TG Fram is better. Still has cardboard end-caps but has 15% more filter media and a screened by-pass valve.

TG1.jpg

The XG Fram is, can't believe I'm saying this, a decent filter. This is the only filter tested that used a different type of filter media. It was more fiberglass in nature vs. paperish for all the rest and is supported with a metal mesh. So even though it has less area, it is 2-3 times as thick.

XG1.jpg

mediadiff.jpg

media2.jpg

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STP and SuperTech are the exact same filter. Decent filter area but cheaply made and the felt end caps detached from the filter media with frightening ease. No by-pass valve.

STP-ST05.jpg

Mopar and Purolator PremiumPlus are the exact same filter. Plenty of filter media with metal end caps which are impossible to remove from the filter media as seen by the dead Mopar filter.

Mopar08.jpgPure06.jpg

Purolator PureOne and Bosch are the exact same filter. Largest amount of filter media with metal end caps which are also impossible to remove from the filter media.

PureOne06.jpgBosch07.jpg

All four of the latter are made by the same manufacture with the only difference between the two sets is the Mopar/Purolator PremiumPlus has the by-pass valve in the front, built into the stem..

Mopar04.jpgPure04.jpg

...and the Bosch/Purolator PureOne has the by-pass valve located in the back via a 45-speed record adapter spring thingy along with 4 more pleats of filter media. Also, the PureOne has the best paint job. A nice royal blue w/ pearl coat :)

Bosch06.jpgPureOne05.jpg

The Wix and NAPA Gold are the same filter but the NAPA Gold had 4 more pleats (61 vs 57) than the Wix. Was this by design or was it a machine assembly variance, probably the latter since everything else was exactly the same. The filters were similar to the Mopar and the Purolator PremiumPlus but made by someone else. They had a similar stem based by-base which was not attached to the filter media but loosely sits in the end-cap without a gasket. The Wix and NAPA Gold also had the second least amount of filter media. They had metal end-caps with the filter media permanently attached.

Wix07.jpgNapa5.jpg

The Mobil 1 and the K&N are exactly the same filter less the 1" bung thingy on the K&N. Both are heavy due to their thick bases and smaller inlet holes. They too had the stem based by-pass valve firmly attached to the end-cap but only had 55 pleats, the second fewest. It did have the deepest pleats which equals fifth in area and the filter media was slightly thicker than most. Had metal end-caps with the filter media permanently attached.

Mobil06.jpgkn1.jpg

Here the #'s (sorted by price):

OilFilterStudy.jpg

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I'm taking the Fram back I was going to use on the Monte's upcoming oil change. I knew Fram filters were crap, but cardboard? Jesus, that's cheap.

Since I can't find the AC Delco filter at parts stores around here, I'm going with a Bosch if they have one that will fit.

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Yeah I'm not using Fram anymore besides maybe their TG line. Gonna go with Bosch, PureOne ore Mopar from now on.

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Then there's AC-Delco, which these days is a crap shoot, :rolleyes: although I often still by them, just from habit I guess. Sometimes it's made by AC, sometimes a WIX, sometimes the STP/Super Tech type filter. The ones on the Ecotec have been about four different kinds so far as well, mostly foreign brand stuff.

Edited by fightingbee
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I always used Fram on the Lumina, but I've started using Motorcraft for the LS. Too bad they didn't slice that one open...I'd be interested to see how it compares since they are $10.

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Motorcraft IIRC at least used to be the same filtration as the Purolator PremiumPlus, but somtimes with the red silicone anti drain back seen in the PureONE instead of a black rubber one.

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Yep, I did a little googling and it looks to be made by Puralator with a slightly different filter element that is spec'd by Ford for longer life. It looks to be a pretty good filter.

Filter3a.jpg

http://www.bobistheoilguy.com/forums/ubbth...;Number=1521446

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Just re-affirms my belief that Fram always has been, and always will be, crap. Anyone who uses a Fram anything deserves what they have coming. I do find it funny and sad that Fram is actually the top of the line brand at Wal-Mart.

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Here's a better pic comparing the Motorcraft (left) to Purolater Pure One (middle) and Purolater Premium Plus (right).

filter-puro.jpg

Here's another great oil filter comparo with nearly every brand on the market

http://minimopar.knizefamily.net/oilfilters/reference.html

Edited by mustang84
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Cool read, and I was surprised how cheap the Fram's were. I actually think it's a Fram that was last installed in my truck, so I'll be sure use one of the competitors if I can.

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Nice filter read, but it's a little misleading though, DF.

The choice of filter you use depends quite a bit on your driving style, and your OCI (oil change interval)

Some people do dino and 3k OCIs, others may use a synthetic and 10k OCIs....it just depends.

Frams are okay , but as you can see by the construction, I would stick with 3000 mile oil changes.

Since I ran cartridge filters in my cars (all Ecotecs), I just need a good flowing filter.

I was running Wix/Napa Golds (very good filter, IMO), but I'm going back to AC Delcos, as they are not only well made, but made in the USA too. :metal:

Because I'm running synthetic in all my cars (Mobil 1, Napa Synthetic, Pennzoil Platinum), I'm bumping them all to 4k-4.5k OCIs ( We do a bunch of city driving)

STP and ST filters are made by Champ Labs (they also make many AC Delco filters), and they will be just fine to use and sleep well at night.

Of course, I think Wix/Napa Golds/Carquest reds are the best bang for buck.......

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Just re-affirms my belief that Fram always has been, and always will be, crap. Anyone who uses a Fram anything deserves what they have coming. I do find it funny and sad that Fram is actually the top of the line brand at Wal-Mart.

For most of the general public, Fram will be just fine.

I expect better, so I buy better.

I'm the only person I know who had a Fram problem (media came apart in the can) when I had the wagon, so they have to be decent.

My neighbor has used them for over 20 years with no issues.....

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I'm taking the Fram back I was going to use on the Monte's upcoming oil change. I knew Fram filters were crap, but cardboard? Jesus, that's cheap.

Since I can't find the AC Delco filter at parts stores around here, I'm going with a Bosch if they have one that will fit.

What part store do you have by you?

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Some Wal-Marts carry AC Delco, every Autozone I've ever seen carries Delco as well.

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Some Wal-Marts carry AC Delco, every Autozone I've ever seen carries Delco as well.

Yep, and Advance Auto too....

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I was running Wix/Napa Golds (very good filter, IMO), but I'm going back to AC Delcos, as they are not only well made, but made in the USA too. :metal:

Check the actual filter before you buy.

When was selling Saturn parts some cases of the AC Delcos for the Ecotec started coming with filters made in Bulgaria as well. They were an OK looking filter but not nearly as nice looking as the previous Purflux and Hengst OEM'd filters, and they didn't snap into the the cap nearly as well. I snapped up a case of the USA made Hengst produced filters shortly thereafter.

Edited by fightingbee
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I buy Mobil 1 period.

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You guys are doing the same thing that so many people wrongly do - saying Frams are crap, ignoring that not all the Fram filters they dissected were crap. Yes, the cheap Frams are crap. But they said outright that the upper ones were pretty good. Thus, you can't just say Fram = crap.

I don't personally buy Fram oil filters, but I do get tired of the oversimplification, because it then spills over into assumptions of all Fram = crap, which isn't necessarily true. Just like everyone else, most of their stuff is relabeled from some other company, and you could avoid Fram and buy some other brand just to get the same crap half the time. Or it could be the same thing as the good brand. The generalization just doesn't work.

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Check the actual filter before you buy.

When was selling Saturn parts some cases of the AC Delcos for the Ecotec started coming with filters made in Bulgaria as well. They were an OK looking filter but not nearly as nice looking as the previous Purflux and Hengst OEM'd filters, and they didn't snap into the the cap nearly as well. I snapped up a case of the USA made Hengst produced filters shortly thereafter.

Thanks for the info....and I do double check my filters. ALL of my filters are Hengst.......

I pick em up at AAP for 4.69 a filter. A good price for a good filter! :thumbsup:

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I buy Mobil 1 period.

Which is fine, but there are many good oils to choose from out there....

My Cav coupe loves it's Napa synthetic. :booyah:

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You guys are doing the same thing that so many people wrongly do - saying Frams are crap, ignoring that not all the Fram filters they dissected were crap. Yes, the cheap Frams are crap. But they said outright that the upper ones were pretty good. Thus, you can't just say Fram = crap.

I don't personally buy Fram oil filters, but I do get tired of the oversimplification, because it then spills over into assumptions of all Fram = crap, which isn't necessarily true. Just like everyone else, most of their stuff is relabeled from some other company, and you could avoid Fram and buy some other brand just to get the same crap half the time. Or it could be the same thing as the good brand. The generalization just doesn't work.

You might want to re-read my post then. :neenerneener:

Frams are okay, and they do their job just fine.

But their many filters out there that are better for money you pay for fram....

Heck, ST filters are pretty good filters for the money..

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The XG Fram is the only one I would consider. The others are just garbage. Facts are facts: cardboard end caps with poor fitting and bad anti drain-back valve seal design that leaks. Leaky seals are not "ok" The XG is decent but the other stuff has no place in my cars.

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Once upon a time, Fram really made the best stuff - several takeovers later the story is different.

I use AC/Delco or NAPA Gold.

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Yeah I've heard they used to be good but the cost cutting and takeovers have turned them into mostly a joke.

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