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Stratapore LF3894 vs. Amsoil EaO80

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When I first saw the EaO80 it did not get a warm & fuzzy feeling about it. The oil return holes are smaller, and the mounting surface didn't look as beefy as the LF3894. Length is about the same. Ditto for O. D The LF3894 did feel heavier on the top end.



I did notice the Amsoil filter pre-filled slower than the Fleetguard.



I did install the EaO80 and the oil pressure seems to hold steadier than the LF3894.



Fairly big price difference between the two. $9. 95 LF3894 vs $16. 50 for the EaO80.
 
So basically the Fleetguard is a direct spin-on that fits the BMK-11 mount? It has a better flow rate, but gives some fluctuation in the oil pressure? Otherwise no notable differences outside of the expense of the filters?



Under normal operating temps, you will see some oil pressure fluctuation depending on whether you are at idle, low rpm's, and high rpm's. This is what I have seen without a bypass filtering system. When I installed the Amsoil BMK-11 bypass filter, I did not see any changes as to how things were operating. Still a slight difference in oil pressure in various rpm/loads on the engine. I did notice that the oil pressure is a little higher with a cold oil drive off, but I usually give a min or two warmup before driving. Maybe I will see more of a difference when the temps get colder in the winter and it take a little longer for the oil to heat up. In the winter I wait to see the temp gauge move off a little.



So like ^^^^ What's your conclusion?



CD
 
I've tried both, complete with oil analysis - the Fleetguard 3894 won by a noticeable margin - admittedly, it was only a single run on the Donaldson.



My conclusion is, I'll stick with the 3894... ;)
 
CD,



These are full flow filters. Not Bypass filters.



In other words Amsoil now makes an EaO filter for the Cummins/Dodge Instead of just the Wix or the Donaldson Endurance.



AMSOIL - Ea Oil Filters
 
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Being in the design/manufac trade, I can see a difference in quality in construction between the two filters. The Donaldson ELF7349 looks to be the same as the Amsoil 080 filter. Ive since gone back to running only FleetGuard oil and fuel filters.
 
How does the fg3894 compare to the Amsoil EA filter in the Filter efficiency @ 15 microns per ISO 4548-12? I see the amsoil claims 98. 7% efficiency.
 
In all the comparos I've seen between oil filters none of the others have 8 large return holes like the Fleetguard. I think it matters a little given the B-series oil pump is rated at approx. 20 gallons per MINUTE.

Vaughn
 
After running the EaO80 for 6 months, I put a new Stratapore 3894 on. The oil didn't seem any cleaner, but I did not get it analyzed.



Picked-up a long over due Oil filter Cutter from Summitt Racing. Works GREAT. You can see the metal on the side of the can the FilterMAG™caught.
 
When I first saw the EaO80 it did not get a warm & fuzzy feeling about it. The oil return holes are smaller, and the mounting surface didn't look as beefy as the LF3894.

I am not one to bring threads back from the dead, but this is making me twitch. The return is the center. Not the smaller holes around the perimeter. They are the feed holes. As long as the combined area of the smaller holes is equal too or greater than the area of the return hole, you gots nuttin to worry about.
 
The other thing I want to add, it the oil wont be visibly cleaner on any filter you use. The oil is black from soot, most soot is sub-micron. Even with my bypass my oil is black as the night as soon as I change it.

Also, depending on the year the oil pressure guage won't tell you anything either, as they are fake.

The Amsoil/Donaldson is 100% at 20um, 98. 7% at 15um, and 59. 97% at 7um. The Stratapore is 98. 7% at 25um, thats is what you are paying for, that and increased filter life.
 
The other thing I want to add, it the oil wont be visibly cleaner on any filter you use. The oil is black from soot, most soot is sub-micron. Even with my bypass my oil is black as the night as soon as I change it.



Also, depending on the year the oil pressure gauge won't tell you anything either, as they are fake.



The Amsoil/Donaldson is 100% at 20um, 98. 7% at 15um, and 59. 97% at 7um. The Stratapore is 98. 7% at 25um, thats is what you are paying for, that and increased filter life.



"Visual" comparisons of sample oil (and often, manufacturer claims!) are likely to be pretty worthless - the only reliable test, is oil analysis including particle counts, done thru the same analysis lab, on the same engine, run as nearly as possible the same way for comparison...



Anything else is simply personal opinion and "warm fuzzy feeling" guesswork. ;)



And no, you don't ALWAYS "get what you pay for"! :p
 
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I like the Stratapore 3894. Didn't buy another Amsoil EaO80.

I dunno

What was your basis of comparison?

"Visual" comparisons of sample oil (and often, manufacturer claims!) are likely to be pretty worthless - the only reliable test, is oil analysis including particle counts, done thru the same analysis lab, on the same engine, run as nearly as possible the same way for comparison...

Anything else is simply personal opinion and "warm fuzzy feeling" guesswork. ;)

And no, you don't ALWAYS "get what you pay for"! :p

No, you don't always get what you pay for. . But you get a MUCH better filter, and its proven. But yes, visual is useless on oil, especially diesel oil.
 
Micron ratings on filters are tricky as well. You have to make sure you are talking the same measurement, as in absolute or nominal. Most spectroscopy oil analysis cannot detect particles bigger than 10 um which are the most important wear metals for bearing and contact surface life. Comparing a good 2 drains on each filter might glean some comparison on the filter life but there are many variables involved including air filtration, temperature and load.
 
I think you really DO get what you pay for- Even when the "data supports... otherwise". There are always uncontrolled conditions that affect the outcome of those test results. BUT when the "Seat of the Pants" testing tells you you did something right, you're happy. The warm and fuzzy factor always supersedes analytical science. Besides- in this case, we're talking about two quality products that can only be compared effectively by $. My $. 02
Greg
(good inputs L-Dog, ah-64)
 
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