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NEW PRIME GUARD #POF 4459 CUT OPEN #5142094 06/23/19 06:02 PM
Joined: Mar 2015
Posts: 14,046
53' Stude Offline OP
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This filter is from Subierubyroo and looks serviceable to me. These can be had for like $1.99 at Rural King. Makes me feel comfortable about using the Prime Guard #POF 1A he sent me smile

Enjoy the pics folks wink

20190623_195408.jpg20190623_195427.jpg20190623_195443.jpg20190623_195611.jpg20190623_195623.jpg20190623_195635.jpg20190623_195641.jpg20190623_195645.jpg


Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5142097 06/23/19 06:04 PM
Joined: Mar 2015
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53' Stude Offline OP
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Extra pics wink

20190623_195705.jpg20190623_195649.jpg20190623_195416.jpg


Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5142129 06/23/19 06:23 PM
Joined: Jan 2017
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SteveG4 Offline
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Yep. Serviceable for a nomal OCI interval. smile


Somewhere between Alaska and Wisconsin...
2006 Silverado LT Crew Cab 4WD & 2013 Equinox AWD
Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: SteveG4] #5142135 06/23/19 06:29 PM
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53' Stude Offline OP
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Originally Posted by SteveG4
Yep. Serviceable for a nomal OCI interval. smile



I would use it smile



Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5142205 06/23/19 07:45 PM
Joined: Nov 2008
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JC1 Offline
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Looks good thanks for the Cut and post.


2015 Grand Caravan SXT Plus 0w-20 Pennzoil Ultra/Fram Ultra Filter
1997 Honda Civic CX 5w-30 PPPP/Fram Ultra Filter
Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5142224 06/23/19 08:03 PM
Joined: Dec 2004
Posts: 11,455
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Triple_Se7en Offline
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Only issue I had with mine is the ADBV. Quiet at cold startup for 3K, but the last 3K were rattle startups.


19' Hyundai Santa Fe 2.4 GDI - Valv Syn 5w30 / Napa Proselect filter / 6oz Liqui-Moly
20' Kia Soul X-Line 2.0 Multi-port / Factory-fill oil / filter
04' Colorado 3.5 / Castrol Edge 0W40 / K&N filter
Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5142276 06/23/19 08:39 PM
Joined: May 2012
Posts: 3,423
SubieRubyRoo Offline
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I’d use for 5k OCIs with Harvest King syn all day... for a $16 OCIs

Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5142438 06/24/19 03:03 AM
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53' Stude Offline OP
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Good point Chris:)



Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: Triple_Se7en] #5142655 06/24/19 09:25 AM
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Posts: 77
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DudeNiceRide Offline
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The operating temperature of an engine oil system is outside that of typical Nitrile rubber. Look it up. I was filter-shopping for my F250 diesel and wondered why Ford was using silicone check valves, and discovered the black NBR stuff isn't really good enough. And most fuel system seals are Viton b/c it's good enough to resist the Ethanol (same thing, regular NBR will harden and crack/leak).

If this is made in China, they are notorious for using fairly low-grade rubbers in their seals in general (not just automotive). Ever walk into a Harbor Freight and smell "that smell"? Or buy cheapo Chinese tires that stink up your garage for a couple months? It's cheap rubber that's out-gassing all kinds of nasty stuff the US-makers aren't permitted for (i.e. emissions regulations). They often pass US requirements since the boat ride from China is so long plus the time the product may sit around waiting to be tested -- the stuff can out-gas below regulatory levels before it's ever tested. The environment suffers.

Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: SubieRubyRoo] #5142682 06/24/19 09:56 AM
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Mad_Hatter Offline
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Originally Posted by SubieRubyRoo
I’d use for 5k OCIs with Harvest King syn all day... for a $16 OCIs


👍

Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5142759 06/24/19 11:17 AM
Joined: May 2012
Posts: 3,423
SubieRubyRoo Offline
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Dude, where’s the proof these are inadequate for their task? Not your opinion, back it up with some real, verifiable proof. Sure, we all get that there are target “optimal” uses for every material, but just making a blanket statement that “NBR sucks” isn’t proof. We’ve covered this numerous times... take Baldwin and Donaldson for example, two of the heavy-industry filter giants. They could use ANY material they choose and nobody would complain about an extra $0.25 cost for a silicone ADBV if it gave any benefit... yet they still use Nitrile for a majority of their filters. I’m going to say they’ve thoroughly torture-tested all options, and determined Nitrile works just fine. Use the filter within the manufacturer’s recommendation and there won’t be any downsides.

Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: SubieRubyRoo] #5142772 06/24/19 11:32 AM
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Mad_Hatter Offline
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Originally Posted by SubieRubyRoo
Dude, where’s the proof these are inadequate for their task? Not your opinion, back it up with some real, verifiable proof. Sure, we all get that there are target “optimal” uses for every material, but just making a blanket statement that “NBR sucks” isn’t proof. We’ve covered this numerous times... take Baldwin and Donaldson for example, two of the heavy-industry filter giants. They could use ANY material they choose and nobody would complain about an extra $0.25 cost for a silicone ADBV if it gave any benefit... yet they still use Nitrile for a majority of their filters. I’m going to say they’ve thoroughly torture-tested all options, and determined Nitrile works just fine. Use the filter within the manufacturer’s recommendation and there won’t be any downsides.


Agreed..in my humble, not very educated opinion on oil filters... stick with OE whenever possible, or go with a reputable aftermarket brand that meets or exceeds OE spec. Unless there's some kind of recall or TSB I'm made aware of, I'm fine using whatever Champ Labs, Wix or M+H puts in there...if something fails catastrophically, they'll be buying me a new engine - simple as that.

Last edited by Mad_Hatter; 06/24/19 11:33 AM.
Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: SubieRubyRoo] #5142819 06/24/19 12:15 PM
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Posts: 14,046
53' Stude Offline OP
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Originally Posted by SubieRubyRoo
Dude, where’s the proof these are inadequate for their task? Not your opinion, back it up with some real, verifiable proof. Sure, we all get that there are target “optimal” uses for every material, but just making a blanket statement that “NBR sucks” isn’t proof. We’ve covered this numerous times... take Baldwin and Donaldson for example, two of the heavy-industry filter giants. They could use ANY material they choose and nobody would complain about an extra $0.25 cost for a silicone ADBV if it gave any benefit... yet they still use Nitrile for a majority of their filters. I’m going to say they’ve thoroughly torture-tested all options, and determined Nitrile works just fine. Use the filter within the manufacturer’s recommendation and there won’t be any downsides.


Very true. I believe member Bullwinkle told us that some of the tractor trailer manufacturers even use nitrile adbv's also

Last edited by 53' Stude; 06/24/19 12:15 PM.


Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: DudeNiceRide] #5143944 06/25/19 04:15 PM
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Mad_Hatter Offline
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Originally Posted by DudeNiceRide
The operating temperature of an engine oil system is outside that of typical Nitrile rubber.


Aren't normal operating temps for an engine going to be in the 180~220 range? So if nitrile rubber is good to 226f, it should be good no? I mean how many engines out there operate at or near 226 for extended periods? Dunno..but mine certainly doesn't. It only gets above 200'ish on the hottest days, while in stop-go traffic. Even then it's not like it's running in that temp range for an extended period.

Fwiw, i keep my obd2 plugged in all the time while driving, only taking it out at night to avoid unnecessary battery drain. I watch the numbers in real time via the torque app on my phone, so I'm intimately familiar with how hot my engine gets in the various conditions. My kids laugh but who cares..it allows me to spot (developing) problems. 😉 Does anyone else do this???

Last edited by Mad_Hatter; 06/25/19 04:15 PM.
Re: NEW PRIME GUARD #POF 4459 CUT OPEN [Re: 53' Stude] #5144064 06/25/19 07:15 PM
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GumbyJarvis Offline
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Nitrile must be good enough for OEM companies to allow them in their oil filters. Plenty of Mopar, Toyota, etc filters use them. Will they last 20k miles?
Probably not. Will they last a typical 5K oci? Yes


2018 RAM 1500 SLT 5.7L
Formula Shell Conventional 5w20 - Fram Tough Guard


Disabled US Army Vet
OEF 2013-2014
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