NAPA Gold or ?

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AZjeff

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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.
 
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
 
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,
 
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?
 
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).
 
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!
 
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.
 
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.
 
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.
 
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.
 
Originally Posted By: ZraHamilton
Also, the construction of the Wix XP is much better than the Fram Ultra.


"Much better" ... in what way?
 
Stick with the NAPA Gold or WIx and rest easy.
thumbsup2.gif
 
You can look at Baldwin too. Excellent filters, but don't know if they have a fitment for you ...

But, what is easiest to get? Don't know anything about your shopping routines, or storage routines ...
 
Originally Posted By: SatinSilver
Anyone know the efficiency of the ST oil filter at Walmart, made by Wix?


95% @ 30 microns printed on the box
83% @ 25 microns tested by Champion Laboratories (Napa ProSelect clone)
69% @ 20 microns by extrapolation
 
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