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#4639898 - 01/19/18 12:25 PM NAPA Gold or ?
AZjeff Offline


Registered: 01/14/11
Posts: 2632
Loc: PV Az
NAPA Gold oil filters have been my go-to for years. No worries about the Wix built spin-ons, don't know who makes the Toyota cartridge. The RAV4 recently went from a town runabout car to a 100 mile/day commuter car until May then 70 mile/day until whenever. Almost all 65-75 mph highway miles. No concerns about the 10K OCI or 0W-20 oil in use but wondering if there's a better filter choice. The miles are going to add up fast, we've never taken a car from new to 200K but this might be the one.

Thanks for your thoughts.
_________________________
86 Samurai 1.3 leftovers
14 RAV4 2.5 5W-20 PP *gasp*
16 Silverado 1500 4.3 Ecotec3, DI, AFM 5W-30 PP

Why know when you can guess?!


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#4639904 - 01/19/18 12:34 PM Re: NAPA Gold or ? [Re: AZjeff]
ZraHamilton Offline


Registered: 01/15/18
Posts: 92
Loc: Tennessee, United States
Wix XP is an excellent filter. It can hold 100% more contaminants than the regular Wix/Napa Gold. Also, the synthetic fiberglass media allows it to flow the oil better.

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#4639909 - 01/19/18 12:37 PM Re: NAPA Gold or ? [Re: AZjeff]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2559
Loc: MN
Doing 100 miles a day is perfect for using the "20,000 Mile Plan" as we'll call it.
M1 Annual Protection 20,000 Mile Oil
Fram Ultra 20,000 Mile Oil Filter

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#4639922 - 01/19/18 12:53 PM Re: NAPA Gold or ? [Re: ZraHamilton]
Bottom_Feeder Offline


Registered: 12/07/08
Posts: 3007
Loc: Occupied Virginia
Originally Posted By: ZraHamilton
Wix XP is an excellent filter. It can hold 100% more contaminants than the regular Wix/Napa Gold. Also, the synthetic fiberglass media allows it to flow the oil better.

No it isn't. It's known to have very poor efficiency, something like 50% at 20 microns. You can do better. Lots better.

If you want something that has excellent filtration for lots of miles and has synthetic glass media, go with a Fram Ultra,

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#4639929 - 01/19/18 01:06 PM Re: NAPA Gold or ? [Re: AZjeff]
ZraHamilton Offline


Registered: 01/15/18
Posts: 92
Loc: Tennessee, United States
All fiberglass media is better at filtering than cellulose. Just look at fiberglass vs. cellulose under a microscope. Each pore on fiberglass is roughly 10 times smaller, but there are 10 times the number of pores, and several more layers.

If it did filter that poorly, how would they be able to sell it?

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#4639945 - 01/19/18 01:16 PM Re: NAPA Gold or ? [Re: AZjeff]
gfh77665 Offline


Registered: 09/01/08
Posts: 3793
Loc: Southeast Texas
I heard the NAPA Platinum had 50% efficiency, while the NAPA Gold was 95+.

If so, the Platinum would load slower, allowing for faster flow and more holding capacity over time (would last longer).

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#4639951 - 01/19/18 01:21 PM Re: NAPA Gold or ? [Re: ZraHamilton]
Pajero Offline


Registered: 05/05/12
Posts: 846
Loc: Rio Rancho, NM
Originally Posted By: ZraHamilton
Wix XP is an excellent filter. It can hold 100% more contaminants than the regular Wix/Napa Gold. Also, the synthetic fiberglass media allows it to flow the oil better.


The XP is made for OEM specs, not efficiency. The XP is very well made OF. You may want to google Fram Ultra BITOG. You will learn a plethora of data you never imagined existed.



Respectfully,

Pajero!
_________________________
Always remember "Planned obsolescence."

1994 Montero SR 3.5 DOHC, 133,xxx
Fram Ultra/ Snorkel with Pre-filter
K-9-Co-pilot

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#4639957 - 01/19/18 01:26 PM Re: NAPA Gold or ? [Re: AZjeff]
goodtimes Offline


Registered: 12/08/10
Posts: 2850
Loc: california
Toyota Denso OE. Correct fit, factory warranty, and it's what the car came with new. Inexpensive and easy to get by the case. Set it and forget it.

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#4639969 - 01/19/18 01:34 PM Re: NAPA Gold or ? [Re: AZjeff]
ZraHamilton Offline


Registered: 01/15/18
Posts: 92
Loc: Tennessee, United States
The xp is 99% efficient at 35 microns. It becomes more efficient with use once it picks up some particles.

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#4639972 - 01/19/18 01:37 PM Re: NAPA Gold or ? [Re: AZjeff]
ZraHamilton Offline


Registered: 01/15/18
Posts: 92
Loc: Tennessee, United States
Also, the construction of the Wix XP is much better than the Fram Ultra.

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#4639998 - 01/19/18 01:56 PM Re: NAPA Gold or ? [Re: AZjeff]
CT8 Offline


Registered: 10/09/14
Posts: 10953
Loc: Idaho
There is a large sample of venicles that exceed 300,000+ miles running oil change shop oils and filters.Too much worry, too little driving. Maintain the car and it will last as long at it is gonig to last without any Voodoo.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4640000 - 01/19/18 01:57 PM Re: NAPA Gold or ? [Re: ZraHamilton]
CT8 Offline


Registered: 10/09/14
Posts: 10953
Loc: Idaho
Originally Posted By: ZraHamilton
Also, the construction of the Wix XP is much better than the Fram Ultra.
While not being able to give no more than opinion the coil spring seems a better design than the leaf spring in the filters.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4640013 - 01/19/18 02:04 PM Re: NAPA Gold or ? [Re: AZjeff]
Trav Offline


Registered: 11/20/06
Posts: 18867
Loc: MA, Mittelfranken.de
Never had any problems with NAPA Gold, it can go 10K easy enough.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

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#4640054 - 01/19/18 02:37 PM Re: NAPA Gold or ? [Re: ZraHamilton]
ZeeOSix Offline


Registered: 07/22/10
Posts: 17772
Loc: PNW
Originally Posted By: ZraHamilton
The xp is 99% efficient at 35 microns. It becomes more efficient with use once it picks up some particles.

Test data says oil filters lose efficiency as they load up. Been a few treads about it.

The ISO 4548-12 test is reporting average efficiency from the new condition to a fully loaded condition, so it takes into account the decrease in efficiency over use. And not all filters exhibit the same level of efficiency loss with use. So could be a filter that has a low ISO test efficiency has a hard time retaining debris as it loads up and the delta-p increases.

99% at 35 microns is pretty much equivalent to 50% at 20 microns.

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#4640060 - 01/19/18 02:43 PM Re: NAPA Gold or ? [Re: ZeeOSix]
SatinSilver Offline


Registered: 01/24/08
Posts: 10141
Loc: OH
Anyone know the efficiency of the ST oil filter at Walmart, made by Wix?

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