Specs for wix bypass filter / Amsoil Eabp

[dukeisok]

I have three vehicles with Amsoil bypass filters, all for different reasons.

I went to buy new EaBP filters from Amsoil and they are all on extended backorder.

Amsoil recommends using a Wix WL11042 filter.

Amsoil doesn't have any filtration specs that they will share, and Wix doesn't either (I called both). The Wix website lists this as a filter made specifically for Amsoil bypass systems and gives no more info. The filters are cheaper than eabp filters, and rock auto has them for $34.

I suspect they don't reach the 2 micron rating of an EaBP filter. In my searching, I found some eabp filters at a lawnmower supply place (apparently dixie choppers used them from the factory and lists them as their part 60119, though for $100 each

I'm sure I am worrying about nothing, but I would prefer to have the amsoil level of filtration. Getting a filter for 1/3 the price is appealing though.

At this point I'll probably run the filters I have until they stop up, then see if Amsoil then has stock.

Any other thoughts?

 

[BobsArmory]

I can't say but the wix and amsoil filters maybe be the same thing just with different paint on the outside.

 

[dukeisok]

that was my initial thought, but Amsoil specifically will not confirm that these meet the same specs and they don’t look identical online. Wix doesn't offer three separate sizes either. there’s probably no way to know given the secrecy around supplier agreements.

 

[Dutchy491]

For $34 each I’d suggest buy 3. Especially in today’s craziness. Likely better than running the EABP filters until they’re plugged solid. Run them a little longer, sure, but how would you know when they’re plugged?
Cut them open and compare as you replace them…

 

[dukeisok]

My assumption was that bypass filters become more effective as they fill up with particulates. When they finally plug, they no longer get hot as oil is no longer entering the filter. Then you just have the primary filter, which I change on schedule anyway. I suppose I could rig up a temp gauge on the bypass base, or more likely just put a hand on it every time I fill up with fuel.

 

[kschachn]

My assumption was that bypass filters become more effective as they fill up with particulates. When they finally plug, they no longer get hot as oil is no longer entering the filter. Then you just have the primary filter, which I change on schedule anyway. I suppose I could rig up a temp gauge on the bypass base, or more likely just put a hand on it every time I fill up with fuel.

@ZeeOSix

 

[ZeeOSix]

^^^ Hard to say without some ISO testing if a super high efficiency bypass filter loses efficiency as it loads up. Reason I say that is because they are relatively large in size, and the flow volume rate through them is pretty low compared to a full flow filter. The large media area and small flow rate may make them act more like an air filter as they load up. I'd like to see some official efficiency testing on some of them. We know per ISO 4548-12 efficiency testing that full flow oil filters do lose efficiency as they load up. If the oil flow volume through them was a trickle, they might show a different reaction.