- Joined
- Apr 12, 2025
- Messages
- 867
Filter is very clean. Toyota filter would have been fine but I was playing it safe. Best car I have ever owned.
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It shouldDoes the longer 4386 fit? All in all it looks good.
Filution dilution sucks. That oil probanly has 4% fuel in it, too risky to push it to 10k miles. I am watching the 4th of July HPL sale go by and I can't do anything about it. $25 flat shipping fee even if I order 10 × 12 quart cases. Four OCI a year would have made my life so easy.You could safely run that to 10k or push it to 15k.
All Endurances have backed media. WCW clearly shows it's magnetic in this case. BTW, stainless steel can still have a level of magnetism depending on the exact alloy mix.That was an interesting one because it has the mesh, it is not magnetic( wasn’t magnetic before, was stainless) and the media was sort of loosely bonded.
On the Toyota filter, it does seem like some unfiltered oil would go through the gap between the filter media and the centre core. The core seems to slide out pretty easily, so I doubt it seals perfectly on the bottom side. On the top, it looks to be sealed well enough by the leaf spring.With no end plates how do they get all of the oil to go through the media?
On some filters the center tube is raised to seal into the ADBV. Not sure how well they seal as these filters tend to have bad efficiency anyway.With no end plates how do they get all of the oil to go through the media?
It failed the flashlight test. How bad is failing this test?
It is supposed to be flush or a little recessed is better, but always isn’t on some recent examples I have cut. Just a little bit too long. If it is flush, no compression against the resin either. The resin can be rough too, I have seen it, which gives a light leak. The resin is hard, not very compressible. Not light through the resin, a gap. I still use them as have quite a few. Even after cutting open about four new ones seem to have a lot of them. It’s like maybe there are more after I cut some open.^^^ To add, when WCW initially takes the filter apart, you can see the center tube is flush to the end cap on the leaf spring side, so the leaf spring is sitting all the way down and sealing on the end cap. The base plate end of the center tube has a rounded edge, and sticks out from the media element and seals down inside the groove in the ADBV.
Center tube flush on the leaf spring side.
View attachment 288122
Center tube edge is rounded on the base plate side to seal in the ADBV groove.
View attachment 288123
You would have to inspect it without cutting the filter open, like @Glenda W. did on the Endurance by cutting inspection windows in the assembled filter. On the Toyota filter, the base end of the center tube goes against the flexible rubber ADBV, so when the filter guts are all held tight by the leaf spring, then the leaf spring should be seated down on the end cap "resin ring".It is supposed to be flush or a little recessed is better, but always isn’t on some recent examples I have cut. Just a little bit too long. If it is flush, no compression against the resin either.
Yeah, even if the leaf spring is seated well, we all know by now that there may not be a perfect seal for various reasons as seen many times now. The only filter with a leaf spring that seemed to be designed right was the OG Ultra with the fiber seal on the end cap, and the leaf spring was stamped smooth and also fit tight on the ID of the fiber gasket to add another layer of sealing.The resin can be rough too, I have seen it, which gives a light leak. The resin is hard, not very compressible. Not light through the resin, a gap. I still use them as have quite a few. Even after cutting open about four new ones seem to have a lot of them. It’s like maybe there are more after I cut some open.
So it seems nearly every brand can have a defect to worry about.