Amsoil does not build filters.
Contract build to media specification from just about all the USA filter builders out there for the various Amsoil labelled oil filters over the years. Plus they sell some WIX and Mann filters.
See my picture above.
Defective??? Wix WL10332 with closed/nearly closed louvers
- Thread starter FlyNavyP3
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Contract build to media specification from just about all the USA filter builders out there for the various Amsoil labelled oil filters over the years. Plus they sell some WIX and Mann filters.
See my picture above.
Thanks for the information, for some reason I was thinking that Champ Labs made the filters for AMSOIL. Cheers and Merry Christmas!
As I stated, it varies. Champ makes some.
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Denso filters are very nicely made still. I was in the same boat as you, having gone away from Purolator back in the day, then being disappointed with Fram and Wix.Just bought a batch of wix filters off Rockauto and I should’ve done some more up to date research first. First time I’ve been dissatisfied with a rock auto purchase. I open up the boxes and I see “ made in Mexico” and a sloppy glue job and louvers.I’ve been disappointed with Fram endurance filters, now Wix. Don’t even know what to look for these days. The hunt for profits in 2024 has tanked almost every consumer product on the market. **** the greed.
Hope Amsoil makes a deal with Parker/Hannifin or similar for some decent USA made filters, Baldwin, etc.-but the list of good USA made filters is getting smaller and smaller...
I was searching last night to see if Donaldson made a filter in this size, which they do, but it's not Made in the USA and has the same efficiency as the Baldwin that is made in the USA. So no sense in hunting one down. I'm just disappointed because Wix/Affina filters were a so good for so many years and you could just blindly buy one and know it was a well made unit.
Bypass made by Baldwin and co. Used to have some full flows.
Champ must make the EA15K varieties for now.
EA15K09 fits the same application of this Wix WL10332 according to the AMSOIL site, you're saying that's currently Champ sourced?
Can't guarantee a maker if you are asking me. All the EA15Ks I have looked at do not have closed slits.
Link to a C&P of the Wix ProTec version of this filter for comparison here-->Beware a Wix with louvers?? C&P Virgin Wix ProTec PXL10332 - Toyota 90915-YZZN1 equivalent
Even then it’s at least as effective as the XP media… 99% @ driveway gravel
100% of birds larger than a Crow.
So let’s posit this out since I don’t think it’s been discussed in complete depth. Technically if all the louvers were closed, delta-p would be zero, but the bypass would obviously lift. Then, since the pressure sensor is downstream of the filter, and flow is obviously greatly reduced (no way a bypass flows as much as the center return tube or the total inlet area, right?) and the BPV is acting like a Venturi, one would see a reduced pressure if an actual gauge was in use? Or do regular PD rules still apply even with the total bottleneck of the BPV being the only source of downstream flow? If somehow the BPV could handle 100% of flow then obviously regular PD rules still apply. I’m just not sure if filter makers size the BPV to be able to handle 100% of flow at all pressures.
Did I get it right?
If the louvers were all closed, the dP would be really high and all the flow would have to go through the bypass valve. All the dP would be across the bypass valve, causing it to open a lot because of no flow going through the media and center tube. The bypass valve would effectively be one big orifice, and depending on its size and the flow rate from the pump, that will determine how much extra back pressure is put on the oil pump and how much sooner the oil pump hits pressure relief. If the bypass valve was too small, it could essentially cause some oil starvation at high RPM because the pump would be in pressure relief way more than it should be. The bottom line is a choked off oil filter is not a good situation.So let’s posit this out since I don’t think it’s been discussed in complete depth. Technically if all the louvers were closed, delta-p would be zero, but the bypass would obviously lift. Then, since the pressure sensor is downstream of the filter, and flow is obviously greatly reduced (no way a bypass flows as much as the center return tube or the total inlet area, right?) and the BPV is acting like a Venturi, one would see a reduced pressure if an actual gauge was in use? Or do regular PD rules still apply even with the total bottleneck of the BPV being the only source of downstream flow? If somehow the BPV could handle 100% of flow then obviously regular PD rules still apply. I’m just not sure if filter makers size the BPV to be able to handle 100% of flow at all pressures.
Did I get it right?
I am speaking theoretically. No by-pass. Center tube only.
Need clarification of what you're getting at. If a filter doesn't have a bypass valve, there will be one domewhere in the engine or filter mount. The built-in bypass valves are pretty small in size too.
I'm talking about a stand alone, in vitro, not in an engine test of the core - just the center tube - in a fabricated pipe test stand rig.
I didn't say it would be easy.
A test to prove that closed louvers don't flow well? In this case of the filter in post 1, I'd say the dP across that center tube would be pretty high with low flow, especially if the oil was thick and cold since they all look basically totally closed. The bypass valve would most likely be open at low RPM even with hot oil. It's pretty obvious like in this case when louvers are messed up so badly that they shouldn't be used.
Louvers suck, because all people have to go on is a visual check to make up their own mind if they look open enough to make them fell comfortable about using the filter. For me, they need to look really opened up - if they look choked down at all it's a No-Go for me.
Visually these look terrible. I think that debate is done.
But what is the actual obstruction? You have a real number, you can get attention much faster in my opinion. But who knows, seems like - and I do want to be wrong - the filter makers don't give a rat.
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They don't care for sure. They literally just sit behind the desk and say "yeah, they don't have a clue what goes in manufacturing".
To that I want to say, bring me into a production meeting. By the end of it, I'll have your people taking notes. But it's like their scared of confrontation, I'm not.
