Toyota 90915-YZZN1 filter

[Job]

I recently bought some of these. The differences are the base plate holes, the media is more orange and darker than the light yellow of before, and the adbv has a greenish tinge in the black, not the same as the old one. It looks like a redesign. The center tube looks the same. Five for $17.50 from Conicelli on eBay plus tax. This is the same size as the F2, small.
They have always sent fresh stock.

 

[Blagoje]

Y'all gunna cut that thing up or what?

 

[Job]

Not yet

 

[Gokhan]

It's interesting that they've now made the holes bigger in comparison to the superseded 90915-YZZF2. The area of the holes have more than doubled. They might have been having oil-flow restrictions with these tiny oil filters and the bypass valve might have been kicking in. That's why I would go with an oversized oil filter, such as the Fram Ultra XG3600, instead of the Toyota OEM oil filter.

 

[Job]

It's interesting that they've now made the holes bigger in comparison to the superseded 90915-YZZF2. The area of the holes have more than doubled. They might have been having oil-flow restrictions with these tiny oil filters and the bypass valve might have been kicking in. That's why I would go with an oversized oil filter, such as the Fram Ultra XG3600, instead of the Toyota OEM oil filter.

These filters have more media than most any other, and don’t think there was restriction with the old holes. It’s still the outlet pipe size rules. I think they want the flow pattern to be more evenly spaced. The media is clearly different in color, and maybe the Adbv, but otherwise it should be the same. Now there is no more 51% efficiency claim based on Amsoil from 2011, new year, new filter. Have to wait for new tests. I think the 3600 size is a bit of a stretch in size where the F2 is specified. The F1 is what I used to use in place of F2. The 3600 Fram size is like the Toyota D3 size. I figure Toyota knows best.

 

[ZeeOSix]

Now there is no more 51% efficiency claim based on Amsoil from 2011, new year, new filter. Have to wait for new tests.

Yeah, it could now be even worse with the changes ... guess Amsoil or someone else needs to run the ISO test again to find out. Toyota will never release any efficiency info.

 

[Job]

Yeah, it could now be even worse with the changes ... guess Amsoil or someone else needs to run the ISO test again to find out. Toyota will never release any efficiency info.

Like clockwork.

 

[ZeeOSix]

Even a broken clock is right two times a day.

 

[Greasymechtech]

I figure Toyota does not know best. But, they do know how to make money.

The bypass is in the filter. So, the number of holes won't make a difference.

Yes, someone guessed it right.... Its called flow pattern turbulence.... More holes, more area.... better spread out flow. i'd wager that maybe 2, or 3, of those holes will flow the full pump capacity. Now, imagine what the oil has to do to spread around the entire filter if there were only 2-4 holes!

As long as the area of the holes exceeds the area of the oil passage feeding the filter, there isn't going to any difference in flow rates of ANY of the filters with every imaginable hole size/type. Straight flow vs disorderly flow!

The amount of media is meaningless. The capacity, flow rate, single/multipass efficiency is not seen in 'cut open filter threads'.

The filter looks pretty. Big deal. Does it filter well? Unknown. But, past reputation of certain automakers, with overrated filters, isn't impressive. Hyundai, Toyota, and German OE filters won't be found on my cars.

 

[ZeeOSix]

The bypass is in the filter. So, the number of holes won't make a difference.

Not sure what the perceived connection is between the base plate holes and the bypass valve, but there isn't one.

 

[Gokhan]

Not sure what the perceived connection is between the base plate holes and the bypass valve, but there isn't one.

Right, I should have said the relief valve for the oil pump, not the bypass valve for the oil filter.

Doing a quick calculation, even for cold oil, the pressure drop through the base-plate holes is around a few psi. Therefore, the effect will be very small.

Nevertheless, I'm still not fond of these tiny oil filters, despite the Chinese equivalent 90915-10003 currently being on my engine, to be replaced with the Thai 90915-YZZN1 during the free oil change at the dealer in October.

 

[Job]

Not sure all dealers have the N1, they may have the F2 with round base holes still. How do you like the new car?

 

[Gokhan]

Not sure all dealers have the N1, they may have the F2 with round base holes still. How do you like the new car?

I really, really like my new 2021 Prius Prime Limited Blue Magnetism. It handles well, has a lot of advanced technology and safety features, gets great gas mileage, and I love the aqua color—I'm very glad I've made that color choice!