Ultra vs. PureOne or Boss seal

[AuthorEditor]

I had the black nitrile seal from a Fram Ultra stick to the engine when I took the filter off last fall. When I pulled it off the car the ring seemed a bit stretched out and slightly spongy. That's one thing about the PureOnes in the yellow cans, whatever that red ring is made from the filters go on and come off really easy--easy enough that it made me nervous at first it might loosen up during an OCI, but never had that happen, even on my motorcycle. Never had a PureOne red ring come off and stick to the engine either. So, here's a vote for the better sealing PureOnes of old. Do the new PurolatorONE filters have the same type of seal? I see the gasket is listed as "silicone" for the new PurolatorOne, and as "ethylene-acrylic" for the new Boss. I see that Fram just claims to have an "internally lubricated sealing gasket" for easier filter removal. So I guess that means that you have to be careful you don't leave the seal behind on the engine.

Top photo showing a PureOne and a Fram Ultra.

 

[ARCOgraphite]

I used factory filters that DONT have flat gaskets. P- gasket captured "o-ring" all the way.

Always have leaks with the flat gaskets and the new oil formulations.

 

[Sayjac]

Just some notes. The new 'One' says silicone adbv, don't see a mention of sealing gasket. Old P1 red sealing gasket was PTFE coated material, red colored nitrile I assume. Never seen specific spec saying silicone gasket. Thus I've never seen a silicone sealing gasket.

I'm just assuming the new One red sealing gasket is using same design material. I do like that they have thickened and widened that gasket on at least some if not all applications. That is an improvement over previous Puros.

Obviously good practice to make sure gasket is with filter when removed no matter the design.

 

[goodtimes]

The oil changer is supposed to look when they change oil filters. If the gasket is not on the filter on removal, where could that thing be? So it shouldn't be a big problem.
The filter on the left looks like maybe the adbv is off center, like this one made by Purolator for Bosch, was for me:

Here's another type, a P type gasket that seals like an o-ring but also is held in place under the metal lip.

 

[AuthorEditor]

Quote:
Just some notes. The new 'One' says silicone adbv, don't see a mention of sealing gasket. Old P1 red sealing gasket was PTFE coated material, red colored nitrile I assume. Never seen specific spec saying silicone gasket. Thus I've never seen a silicone sealing gasket.

This image is from the Purolator website. Lists the ONE gasket as silicone.

 

[Nyogtha]

So does this

http://www.pureoil.com/en/do-it-yourself/oil-filters/oil-filter-selection-guide/

Prior yellow grippy textured PureOne were PTFE impregnated red nitrile

Prior blue grippy textured Purolator Synthetic were black Premium Nitrile (whatever that means)

 

[Sayjac]

Originally Posted By: AuthorEditor
This image is from the Purolator website. Lists the ONE gasket as silicone.....

Ok, I had not seen that chart, just went to the individual ONE description specifically and didn't see it noted. That's the first one I've seen. Previous P1 never said silicone, but PTFE coated. Good find.

And prior never seen the Boss term ethylene-acrylic specifically for a sealing gasket either.

But as noted biggest improvement I've seen is the thickening and widening of the gasket in some applications.

 

[AuthorEditor]

Here's what DuPont has to say about ethylene-acrylic stuff:

Quote:
Heat- and Chemical-Resistant Ethylene Acrylic Elastomer

Vamac® is widely used in applications where heat and chemical resistance, and specific rubber-like qualities are needed, including automotive powertrains.

DuPont™ Vamac® ethylene acrylic elastomer is engineered for superior thermal and chemical resistance. Widely used for automotive components, ethylene acrylic elastomer helps provide longevity in powertrain applications and air management systems, and delivers long-term durability in other environments with diverse chemical exposure over a broad temperature range.

Engine and transmission seals made with Vamac® provide resistance to service fluids, and retain sealing properties when under compression. Transmission lip seals made with Vamac® help withstand pressure, either hot or cold.

 

[UNC151]

Originally Posted By: goodtimes
The oil changer is supposed to look when they change oil filters. If the gasket is not on the filter on removal, where could that thing be? So it shouldn't be a big problem.
Agreed. How much of a problem is this really considering the millions of filters that are/were installed over the last 50 years before silicone and advanced rubber was used in oil filter gaskets? I have had MC filters leave the gasket on the filter mount, but I always look at the filter to confirm and wipe the sealing surface before installing the new one. Solution in search of a problem?

 

[goodtimes]

Nitrile rubber is synthetic, and used on million dollar equipment for sealing all kinds of things. It isn't junk. There are many variations and qualities of nitrile, which I read is actually red in it's natural state. Fram shows the testing they do on the can and gasket, the gasket blows out at over 300 psi I believe it was. There is a video on it. Nitrile is fine for this use, if some company wants to one up on the competition with different "new" things to have more selling points, that's their right. It does gather more sales as people choose on little unimportant points all the time. Some will choose a 99% efficiency filter over a 98.5%, just from what it says on a box.

 

[slacktide_bitog]

Too bad the Boss doesn't have a red gasket

 

[ZeeOSix]

Originally Posted By: Sayjac
Originally Posted By: AuthorEditor
This image is from the Purolator website. Lists the ONE gasket as silicone.....

Ok, I had not seen that chart, just went to the individual ONE description specifically and didn't see it noted. That's the first one I've seen. Previous P1 never said silicone, but PTFE coated. Good find.


I'd be surprised if the base gasket was pure silicone. My bet it's the same as the old PureOnes ... coated.

 

[Sayjac]

Originally Posted By: ZeeOSix
..I'd be surprised if the base gasket was pure silicone. My bet it's the same as the old PureOnes ... coated.

I agree. More I thought about it, thinking that is incorrect. Unlike adbv, pure silicone not needed nor necessarily suitable as sealing gasket material.

And as noted by others, never had an issue with any type sealing gasket material. The P1 PTFE coating nice combination with the textured can for hand installation and removal. But otherwise not huge deal with me.

 

[AuthorEditor]

Quote:
And as noted by others, never had an issue with any type sealing gasket material. The PTFE coating nice with the textured can for hand installation and removal. But otherwise not huge deal with me.

It's not a make or break for purchasing a filter, but a nice-to-have. I like the way the old yellow PureOnes screwed on and off, and never had a seal fall off the filter or stick to the engine. Like I wrote earlier, had a Fram Ultra seal stick to the car recently and I have noted that other filter gaskets come off and seem out of shape and sort of floppy. If you try to stuff them back into the groove on the can they seem to be too big for the slot now. That indicates to me some sort of degradation. I suppose it doesn't matter with any sort of realistic OCI, but another data point.

 

[WellOiled]

Originally Posted By: goodtimes
The oil changer is supposed to look when they change oil filters. If the gasket is not on the filter on removal, where could that thing be? So it shouldn't be a big problem.
The filter on the left looks like maybe the adbv is off center, like this one made by Purolator for Bosch, was for me:

Goodtimes - your picture #1 and #2 show another improvement. There is more sealant on this filter between the interior of the gasket plate and the matching face of the tapping plate as compared to the Motorcraft I recently dissected. This would potentially address the loss of anti drain back function. And I recently had a gasket stick to the mounting base on an AC Delco filter. The o-ring on the new oil plug also stuck to the pan so I am wondering if Mobil Super 5000 had something to do with it. Or if it was just coincidental.