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#1414101 - 03/25/09 03:24 AM AC/Delco PF-48, ST and Napa Gold cut open
MedicRxDoc Offline


Registered: 04/12/08
Posts: 45
Loc: Leesport, PA
I was deciding between the AC/Delco, Supertech or NAPA Gold for my 2007 GMC Acadia. Here are the pictures of them cut open:

(link removed)

The gasket on the NAPA Gold was a little thinner, but I don't think that would make a difference in performance.

What one should I use? I was leaning towards the NAPA Gold. I have synthetic QHorsepower for the next oil change and plan on doing UOAs to determine how long and interval that I can go.


Edited by Bill in Utah (04/27/10 08:53 AM)
Edit Reason: Removed link that has possible security issues

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#1414119 - 03/25/09 05:10 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: MedicRxDoc]
Corvette Owner Offline


Registered: 01/22/03
Posts: 1561
Loc: Waldorf, Maryland
I didn't look at your pictures since you have to "sign up" to do so, I don't need any more emails! Why not use some other picture poster, like Esnips.com ?

I switched from AC DELCO Premium UPF-44 (and Mobil 1) oil filters to WIX or NAPA GOLD (same filter) on my Corvette and my cold oil pressure increased 10-15 psi, since the oil pressure sensor on a Corvette is AFTER the oil filter, more pressure means more flow. I did this because some said the DELCO Premium and Mobil 1 filters filter too good at the expense of flow. My UOAs showed no difference.

I would (and do) use NAPA GOLD oil filters.


Edited by Corvette Owner (03/25/09 05:23 AM)
_________________________
Vehicles:
98 Corvette
06 Murano
96 Chevy Van (Custom Conversion)
14 Chevy Impala
10 Starcraft Boat
13 Buick Enclave

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#1414220 - 03/25/09 08:53 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Corvette Owner]
G-MAN Offline


Registered: 11/15/02
Posts: 8854
Loc: SC
Yup, would love to see the pics, but I'm not joining that site just to be able to.
_________________________
2010 Audi A4 2.0T Quattro: Pennzoil Platinum Euro 5w30
2008 Ford Taurus X: MaxLife 5w20; MaxLife ATF

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#1414233 - 03/25/09 09:03 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: G-MAN]
daves87rs Offline


Registered: 02/23/09
Posts: 13277
Loc: Michigan
 Originally Posted By: G-MAN
Yup, would love to see the pics, but I'm not joining that site just to be able to.



+2
_________________________
“The Only Thing Necessary for the Triumph of Evil is that Good Men Do Nothing.”

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#1414259 - 03/25/09 09:42 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: daves87rs]
mcrn Offline


Registered: 11/30/05
Posts: 2340
Loc: FL
+3

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#1414329 - 03/25/09 10:58 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Corvette Owner]
daman Offline


Registered: 09/23/06
Posts: 10439
Loc: Bad Axe, MI
 Originally Posted By: Corvette Owner

I switched from AC DELCO Premium UPF-44 (and Mobil 1) oil filters to WIX or NAPA GOLD (same filter) on my Corvette and my cold oil pressure increased 10-15 psi, since the oil pressure sensor on a Corvette is AFTER the oil filter, more pressure means more flow. I did this because some said the DELCO Premium and Mobil 1 filters filter too good at the expense of flow. My UOAs showed no difference.

You changed filters because "someone said" the upf filters are
one of the best IMO, i have them (UPF52)on two of my car/truck
and for me i see NO psi difference(drop)what so ever,cold or hot. You seen
a 10-15 psi drop using GM spec 5w30?? hard to believe,that filter is designed
NOT to be restrictive.
_________________________
"Always"....Mobil 1

Current fill: AFE 0w30

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#1414730 - 03/25/09 04:58 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: daman]
MedicRxDoc Offline


Registered: 04/12/08
Posts: 45
Loc: Leesport, PA
Ok...moved the pictures (removed link)


Edited by Bill in Utah (04/27/10 08:54 AM)
Edit Reason: Removed link that has possible security issues

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#1414754 - 03/25/09 05:22 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: MedicRxDoc]
mcrn Offline


Registered: 11/30/05
Posts: 2340
Loc: FL
Got a warning when I pulled that page up that it is an attack site. It shut down immediately and I barely had enough time to see the pics.

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#1414895 - 03/25/09 07:17 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: mcrn]
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
McAfee sees nothing wrong with it ..but it's popup city. AdBlock, which I had turned off for Hulu, took care of it.
_________________________
http://lube-direct.com/gallan/

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#1414902 - 03/25/09 07:25 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: mcrn]
daman Offline


Registered: 09/23/06
Posts: 10439
Loc: Bad Axe, MI
 Originally Posted By: mcrn
Got a warning when I pulled that page up that it is an attack site. It shut down immediately and I barely had enough time to see the pics.

same here virus warrning. WTF??
_________________________
"Always"....Mobil 1

Current fill: AFE 0w30

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#1414937 - 03/25/09 07:53 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: daman]
Nyquist Offline


Registered: 10/24/08
Posts: 908
Loc: Iowa
I got that virus stuff too. What gives?
_________________________
2011 Chevy Equinox 2.4L (Ecotec SIDI) QSUD 5w30 w/ ACDelco
2008 Chevy Cobalt 2.2L (Ecotec) Mobil 1 0w30 w/ ACDelco

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#1415166 - 03/26/09 12:02 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Nyquist]
mimelio Offline


Registered: 01/28/09
Posts: 133
Loc: New York
Same here

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#1415292 - 03/26/09 07:21 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Nyquist]
MidwestVette1 Offline


Registered: 12/07/06
Posts: 13
Loc: Worden, Illinois
 Originally Posted By: Nyquist
I got that virus stuff too. What gives?


Me too.

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#1415613 - 03/26/09 12:46 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: MidwestVette1]
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
Hue-guiz are scaring me My McAfee gives the site the green light on its site advisor.

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http://lube-direct.com/gallan/

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#1415619 - 03/26/09 12:53 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Gary Allan]
LTVibe Offline


Registered: 05/25/05
Posts: 1137
Loc: Florida
Strange. Earlier today LinkScanner would not allow me to access that link. I just did a re-scan and now LS says it's okay.
_________________________
2005 Pontiac Vibe

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#1415651 - 03/26/09 01:20 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: LTVibe]
daman Offline


Registered: 09/23/06
Posts: 10439
Loc: Bad Axe, MI
im not clicking it again...
_________________________
"Always"....Mobil 1

Current fill: AFE 0w30

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#1415679 - 03/26/09 01:59 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: daman]
mcrn Offline


Registered: 11/30/05
Posts: 2340
Loc: FL
I clicked on that link yesterday. Today my firewall is warning me of a second party that is trying to hook up with my computer. I am not saying its from that but the timing is weird. I left it alone and my computer was running terrible. My desktop also got totally rearranged. I finally rejected it from my firewall and computer is running ok for now. I talked to a friend of mine that knows a lot about computers and he says it sounds like the new Conflicker worm. I am running Norton now to see if it detects anything. I had already run two other scanners but he said this one should show it for sure if that is what happened.

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#1415682 - 03/26/09 02:00 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: daman]
Corvette Owner Offline


Registered: 01/22/03
Posts: 1561
Loc: Waldorf, Maryland
 Originally Posted By: daman
[quote=Corvette Owner]
I switched from AC DELCO Premium UPF-44 (and Mobil 1) oil filters to WIX or NAPA GOLD (same filter) on my Corvette and my cold oil pressure increased 10-15 psi, since the oil pressure sensor on a Corvette is AFTER the oil filter, more pressure means more flow. I did this because some said the DELCO Premium and Mobil 1 filters filter too good at the expense of flow. My UOAs showed no difference.

You changed filters because "someone said" the upf filters are
one of the best IMO, i have them (UPF52)on two of my car/truck
and for me i see NO psi difference(drop)what so ever,cold or hot. You seen
a 10-15 psi drop using GM spec 5w30?? hard to believe,that filter is designed

Many Corvette owners have reported noisy startups using the UPF-44 oil filter, which stop when they switch to another filter. I did see an increase in cold start oil pressure when using a WIX filter.
_________________________
Vehicles:
98 Corvette
06 Murano
96 Chevy Van (Custom Conversion)
14 Chevy Impala
10 Starcraft Boat
13 Buick Enclave

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#1415727 - 03/26/09 02:44 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Corvette Owner]
addyguy Offline


Registered: 09/08/05
Posts: 13425
Loc: Canada
Didn't have problems with the link. The Supertech filter is impressively built - don't know how they can sel them SO cheap.

The AC Delco one was very disappointing. That blob of glue is disgusting!
_________________________
2003 Mazda Tribute LX V-6, 169k miles.
Oil: Edge SPT, PP, and Lucas syn; MPH2 filter.

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#1415804 - 03/26/09 04:47 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: addyguy]
mcrn Offline


Registered: 11/30/05
Posts: 2340
Loc: FL
ok all the scans have finished and all are negative. So I dont know what happened.

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#1415813 - 03/26/09 05:17 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: mcrn]
Corvette Owner Offline


Registered: 01/22/03
Posts: 1561
Loc: Waldorf, Maryland
Yesterday I got a virus warning, today the link works?

I agree the Super Tech does look good. But with WalMart probably going to lowest bidder, who knows what the longterm quality will be? As I said, I use WIX or NAPA GOLD. Use them for 7500 miles with Mobil 1.
_________________________
Vehicles:
98 Corvette
06 Murano
96 Chevy Van (Custom Conversion)
14 Chevy Impala
10 Starcraft Boat
13 Buick Enclave

Top
#1415829 - 03/26/09 05:41 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Corvette Owner]
daman Offline


Registered: 09/23/06
Posts: 10439
Loc: Bad Axe, MI
I would NOT use a ST when NG WIX are available,i've cut open a few st and there scary IMO,thin widely spaced media,paper or composite end caps what ever you may call it that tear off the ends of the media VERY easily just a [censored] filter IMO, why run something like that when a wix,ng is readily available for a good price. just MO i'll stick to my NG,UPF's and fleedgaurds.
_________________________
"Always"....Mobil 1

Current fill: AFE 0w30

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#1416305 - 03/27/09 01:51 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Corvette Owner]
MedicRxDoc Offline


Registered: 04/12/08
Posts: 45
Loc: Leesport, PA
I also was suprised at the SuperTech. The stamp on the metal plate and a red mark are identical on both the SuperTech and the AC/Delco..maybe they subed to the same person to make this lot.

The blob of glue and uneven spacing on the AC/Delco suprised me.

I just got a case of 12 NAPA Gold shipped to me for $39 (includes shipping) so for the few extra cents I wasn't going to chance the SuperTech.

Thanks for all the replies and sorry about the pic troubles.

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#1416890 - 03/27/09 03:36 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: MedicRxDoc]
jdeare Offline


Registered: 09/02/08
Posts: 406
Loc: midwest
I wouldn't click on that link guys. I got this warning from Symantec Endpoint Protection here at work:

Scan type: Auto-Protect Scan
Event: Security Risk Found!
Security risk detected: Trojan.Malscript!html
File: C:\Documents and Settings\redacted\Local Settings\Temporary Internet Files\Content.IE5\Z804X3UZ\index[3].htm
Location: Unknown Storage
Computer: redacted
User: redacted
Action taken: Delete succeeded : Access denied
Date found: Friday, March 27, 2009 3:43:12 PM

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#1417098 - 03/27/09 06:49 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: daman]
Petrou Offline


Registered: 01/27/09
Posts: 435
Loc: Bismarck, ND
i didnt see them same virus block [censored].
_________________________
1992 Chevy 4x4 350 5 spd

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#1417104 - 03/27/09 06:57 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Petrou]
G-MAN Offline


Registered: 11/15/02
Posts: 8854
Loc: SC
I got a security warning when I tried to go to that site.
_________________________
2010 Audi A4 2.0T Quattro: Pennzoil Platinum Euro 5w30
2008 Ford Taurus X: MaxLife 5w20; MaxLife ATF

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#1417315 - 03/27/09 11:01 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Corvette Owner]
SuperBusa Offline


Registered: 03/01/09
Posts: 2371
Loc: WA
 Originally Posted By: Corvette Owner

Many Corvette owners have reported noisy startups using the UPF-44 oil filter, which stop when they switch to another filter. I did see an increase in cold start oil pressure when using a WIX filter.


Just some info here. The only way you could see less oil pressure (on an oil pressure gauge located after the filter) is if the filter was restrictive enough to cause the oil pump to go into relief mode. Of course, cold start/running situations are where the pump will have to work harder to force the same positive displacement through the system, and therefore is when the added filter restriction is going to show up the best.

If there is enough pump pressure "headroom" between the pump's produced pressure at the inlet of the filter vs. the pump's relief pressure setting, then a more restrictive filter will not cause a lower reading on the engine's pressure gauge - the filter's restrictiveness will be "masked" by the pressure headroom. Only when the filter's restriction becomes great enough to eat up that headroom, then the engine's oil gauge will start to show a lower reading.

The oil pressure reading at the inlet to the engine (gauge located between filter outlet and engine inlet) is a direct indication of the volume of oil flow going into the engine. Of course the gauge goes up or down dependent on the oil viscosity and engine RPM. So when less engine oil pressure is seen with a more restrictive filter (all other conditions being constant - viscosity, engine RPM), then this means there is less oil volume going through the filter and engine.

It's a lot to chew on.
_________________________
Beta 1000
Condition 0

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#1418152 - 03/28/09 09:05 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Corvette Owner]
sayjac Offline


Registered: 10/13/08
Posts: 7911
Loc: The Old North State
 Originally Posted By: Corvette Owner
Yesterday I got a virus warning, today the link works?

I agree the Super Tech does look good.
+1 Curious thread. Got a pop up box warning in the middle of the screen. One of those where if you click anything, including X it goes full screen.

Got no virus warning on Norton av 09. Hit control alt delete, shut down screen. Ran quick scan, only cookies. Reopened, clicked again, this time no warning. Saw pics. Hope my computer doesn't lock up. I'll run a full system scan tonight.

Now, for the topic. The ST is clearly the most impressive of the three. Looks well made. Makes me wonder if all ST oil filter apps are made this well?

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#1418181 - 03/28/09 09:22 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: sayjac]
Bowser Offline


Registered: 07/28/05
Posts: 139
Loc: So. Cal
+1 on the ST. Good looking filter!

BTW... no warnings or pop-ups on my Apple iMac. That which does not kill you will make you stronger.

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#1418282 - 03/28/09 11:15 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Bowser]
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
They're popup ads. Get AdBlocker.
_________________________
http://lube-direct.com/gallan/

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#1418514 - 03/29/09 09:41 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Gary Allan]
wgtoys Offline


Registered: 12/11/06
Posts: 1240
Loc: California
Nothing special about modern AC-Delco filters. Heck, you have no idea day-to-day what will be in the box or who made it. That SuperTech doesn't look like the e-core design of most current ST filter production.

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#1418995 - 03/29/09 06:07 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: wgtoys]
GMBoy Offline


Registered: 11/22/04
Posts: 6615
Loc: Texas
 Originally Posted By: wgtoys
Nothing special about modern AC-Delco filters. Heck, you have no idea day-to-day what will be in the box or who made it. That SuperTech doesn't look like the e-core design of most current ST filter production.




I agree with you. I used to be a diehard only AC/Delco filters for the quality. But since you can never tell who made them now and in having 3 of them fail on me (I posted about this before) I will never trust another AC DELCO.

I now use a NAPA Gold, M1 or Bosch and occassionally an ST.

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#1419183 - 03/29/09 09:18 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: GMBoy]
MedicRxDoc Offline


Registered: 04/12/08
Posts: 45
Loc: Leesport, PA
The SuperTech filter was purchsed 2 weeks before the pics were taken. My Walmart rearranged there stuff and I didn't see them there yesterday, but I was kind of in a hurry. I don't think my usual Walmart is that good in this arena judging by what they stock.

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#1419371 - 03/30/09 03:03 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: MedicRxDoc]
hal Offline


Registered: 03/20/09
Posts: 368
Loc: NC
my car takes cartridge-type filters, so i have the benefit of viewing the insides right out of the box. out of all the ones i've seen, i would DEFINITELY rate WIX to be the best. the pleats on them are very uniform and probably the largest amount of media, plus the endcaps are quality and its very well put together. worst would be a tie between Fram (paper endcaps) and STP (cheap filter media). Purolator, Bosch, Mann, and Mobil 1 filters seem to be good also. I'll stick with WIX.

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#1419671 - 03/30/09 11:18 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: hal]
GMBoy Offline


Registered: 11/22/04
Posts: 6615
Loc: Texas
 Originally Posted By: hal
my car takes cartridge-type filters, so i have the benefit of viewing the insides right out of the box. out of all the ones i've seen, i would DEFINITELY rate WIX to be the best. the pleats on them are very uniform and probably the largest amount of media, plus the endcaps are quality and its very well put together. worst would be a tie between Fram (paper endcaps) and STP (cheap filter media). Purolator, Bosch, Mann, and Mobil 1 filters seem to be good also. I'll stick with WIX.



I've got a new CTS that takes the cartridge filter. Neat, clean oil changes! Believe it or not the FRAM cartridge filter looks to be high quality! Metal ends, nice pleats and wrapped in plastic to keep it clean. The STP was just dropped in a box and did not look as good. I don't buy fram filters - but this cartridge one for my car looked the best out of what was available so I tried it.

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#1419729 - 03/30/09 12:09 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: addyguy]
Drew99GT Online   happy


Registered: 10/11/02
Posts: 20530
Loc: Colorado Springs
 Originally Posted By: addyguy
Didn't have problems with the link. The Supertech filter is impressively built - don't know how they can sel them SO cheap.

The AC Delco one was very disappointing. That blob of glue is disgusting!


I believe in this case the Delco and the Supertech are both Champion Labs filters, so theoretically the Delco should have better media. But it sure don't look that way!

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#1419733 - 03/30/09 12:12 PM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Drew99GT]
Drew99GT Online   happy


Registered: 10/11/02
Posts: 20530
Loc: Colorado Springs
I bet the Conflicker worm is embedded in that site.

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#1872610 - 04/27/10 08:52 AM Re: AC/Delco PF-48, ST and Napa Gold cut open [Re: Drew99GT]
Bill in Utah Offline



Registered: 11/11/02
Posts: 12781
Loc: UT
removing the links and locking this post due to possible security issues with hosting site.

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