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#1530354 - 07/13/09 08:50 AM STP Oil Filter - Cut open
e40 Offline


Registered: 03/15/08
Posts: 357
Loc: Waunakee, WI
Here is an STP oil filter, cut open after a 5000 mile run of Quaker State Horsepower on a 2003 Toyota Sienna. I don't usually run this filter, I got it as part of an Autozone oil change package.







_________________________
'08 RX400h 102k
'06 Explorer 4.6 172k
'02 Odyssey 231k Original Trans!

Stash as of 4/26/16:
45q - Citgo SuperGard Syn Blend 5W-20

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#1530366 - 07/13/09 08:57 AM Re: STP Oil Filter - Cut open [Re: e40]
addyguy Offline


Registered: 09/08/05
Posts: 13924
Loc: Canada
Are those cardboard end-caps? Didn't know Fram made STP filters....

Held together pretty well, though.
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2010 Kia Soul 2U - 2.0L I-4, auto, 87k miles.
QSGB 5W-20, NAPA select filter(?)

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#1530370 - 07/13/09 09:02 AM Re: STP Oil Filter - Cut open [Re: addyguy]
chevrofreak Offline


Registered: 06/17/05
Posts: 4941
Loc: Billings, MT
 Originally Posted By: addyguy
Are those cardboard end-caps? Didn't know Fram made STP filters....

Held together pretty well, though.

It's a Champ Labs filter.
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#1530373 - 07/13/09 09:05 AM Re: STP Oil Filter - Cut open [Re: addyguy]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 10025
Loc: N.H, U.S.A.
Come on! Nippon Denso doesnt use ANY endcaps! Nothing wrong with paperboard endcaps for normal interval OCIS. The Filter media is "paper" - should that be ST-Steel mesh too?

As a guy how does FMEA on high technology mil and automotive components - these cut open filters show me NOTHING! 1) Wash the filter down and look for glue separation. 2)Cut the thing open with a tool that DOESNT add particulate to the filter and perform a particle mass and count. 30 Check pliability of ADBV.


Edited by ARCOgraphite (07/13/09 09:06 AM)
Edit Reason: ps
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2014 Nissan Rogue S CVT, OC#4 19671mi-Castrol EDGE EP 5W30+Nissan 15208-9E01A Filter
2015 Forester 6MT 5Door, OC#6 41243mi-M1EP 0W20+Subaru Filter

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#1530377 - 07/13/09 09:08 AM Re: STP Oil Filter - Cut open [Re: ARCOgraphite]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 10025
Loc: N.H, U.S.A.
No Bypass? Looks sludgy. What was oil b4 the qhp - YB? Looks like cleanup sludge.
_________________________
2014 Nissan Rogue S CVT, OC#4 19671mi-Castrol EDGE EP 5W30+Nissan 15208-9E01A Filter
2015 Forester 6MT 5Door, OC#6 41243mi-M1EP 0W20+Subaru Filter

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#1530379 - 07/13/09 09:09 AM Re: STP Oil Filter - Cut open [Re: ARCOgraphite]
chevrofreak Offline


Registered: 06/17/05
Posts: 4941
Loc: Billings, MT
It uses a combination bypass and anti drainback valve.
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#1530388 - 07/13/09 09:15 AM Re: STP Oil Filter - Cut open [Re: chevrofreak]
aquariuscsm Offline


Registered: 12/30/06
Posts: 13782
Loc: South Texas,USA
I saw a filter cut open here one time that had a rubber band holding the media together. Can`t remember what kind it was but there`s no way I`d want an oil filter held together by a rubber band protecting my engine`s oil.
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#1530391 - 07/13/09 09:19 AM Re: STP Oil Filter - Cut open [Re: ARCOgraphite]
e40 Offline


Registered: 03/15/08
Posts: 357
Loc: Waunakee, WI
 Originally Posted By: ARCOgraphite
What was oil b4 the qhp - YB? Looks like cleanup sludge.


All 5w30 full synthetic for the past 11 5000 mile OCI's:

QHP (Latest)
QHP
Valvoline Full Syn
SuperTech
SuperTech
QHP
M1
M1
(Can't remember any further than this, mostly M1, but there might have been a QHP in there somewhere..)

Dealer dino every 5k from new to 72k when I bought it...
_________________________
'08 RX400h 102k
'06 Explorer 4.6 172k
'02 Odyssey 231k Original Trans!

Stash as of 4/26/16:
45q - Citgo SuperGard Syn Blend 5W-20

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#1530393 - 07/13/09 09:20 AM Re: STP Oil Filter - Cut open [Re: aquariuscsm]
beanoil Offline


Registered: 10/17/04
Posts: 2293
Loc: Midwest, Illinois
Looks normal. BTW, thats not cardboard for the endcaps. It's a stiff felt like material. Actually does some fine filtering of its own. No problem running STP, ST, or any of the Champ clones. Even many of the AC Delcos are now Champ Lab.
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beanoil: Tough under heat, real dirty afterwards.

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#1530397 - 07/13/09 09:24 AM Re: STP Oil Filter - Cut open [Re: e40]
Billy_D Offline


Registered: 06/23/08
Posts: 1001
Loc: midwest
Thanks for the pics. I would use it if I got it part of an oil change package. But I would not buy it, there are better filters out there.

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#1530415 - 07/13/09 09:47 AM Re: STP Oil Filter - Cut open [Re: aquariuscsm]
chevrofreak Offline


Registered: 06/17/05
Posts: 4941
Loc: Billings, MT
 Originally Posted By: aquariuscsm
I saw a filter cut open here one time that had a rubber band holding the media together. Can`t remember what kind it was but there`s no way I`d want an oil filter held together by a rubber band protecting my engine`s oil.


The rubber band or string only serves a purpose during assembly.
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#1530488 - 07/13/09 10:48 AM Re: STP Oil Filter - Cut open [Re: aquariuscsm]
jcwit Offline


Registered: 07/24/07
Posts: 3409
Loc: no. indiana
 Originally Posted By: aquariuscsm
I saw a filter cut open here one time that had a rubber band holding the media together. Can`t remember what kind it was but there`s no way I`d want an oil filter held together by a rubber band protecting my engine`s oil.


All depends what the rubber band was/is made of. The valve is also made of somekind of rubber like material.

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#1530490 - 07/13/09 10:49 AM Re: STP Oil Filter - Cut open [Re: chevrofreak]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 10025
Loc: N.H, U.S.A.
Purolator had used string to hold the media for gluing to the end caps.
_________________________
2014 Nissan Rogue S CVT, OC#4 19671mi-Castrol EDGE EP 5W30+Nissan 15208-9E01A Filter
2015 Forester 6MT 5Door, OC#6 41243mi-M1EP 0W20+Subaru Filter

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#1530511 - 07/13/09 11:06 AM Re: STP Oil Filter - Cut open [Re: ARCOgraphite]
paul246 Offline


Registered: 09/26/07
Posts: 388
Loc: Canada
Doesn't look sludgy, just saturated with used oil.

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#1530551 - 07/13/09 11:56 AM Re: STP Oil Filter - Cut open [Re: paul246]
labman Offline


Registered: 03/14/03
Posts: 8711
Loc: Nothern USA
Looks like it has more media than the last Purolator I cut open. I may see what they have my next oil change.

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