Pure One - Bosch filters -- Thin gaskets?

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JGmazda

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Maybe it's just me...? I've noticed when I've used either a Pure One or Bosch filter, the gaskets don't appear very thick.

When I 3/4 turn past contact, it feels like the filter is making contact with the filter base. Anyone else notice this?

I never have this happen with a NAPA Gold...
 
Which filter are you using?
I notice the same problem, my application is L14466, L14477, L14610, L14612. I notice these filters has thinner gasket than the competitor's filters such as Wix 51356, 51365, 51394, 51396, or Mobil M1-103, etc...
I need to tight it up more to prevent leaking from the gasket.
 
Originally Posted By: Kitto
Which filter are you using?
I notice the same problem, my application is L14466, L14477, L14610, L14612. I notice these filters has thinner gasket than the competitor's filters such as Wix 51356, 51365, 51394, 51396, or Mobil M1-103, etc...
I need to tight it up more to prevent leaking from the gasket.


Wow... thought I was the only one! It's thin alright. Especially when you compare it to a NAPA/WIX filter. Even Mobil 1. So you do notice that the filter base is has a greater chance of contacting the mounting face?

I'm using the PL14610 (Bosch 3323) Same filter. I'm not saying it's "bad". I just have noticed that I need to be careful when tightening the filter. At one point I did have a small leak and when I went to tighten the filter, I couldn't really accomplish it because the base was contacting the mounting plate.

Just wondering is anyone else has paid attention to this?
 
Originally Posted By: JGmazda
Originally Posted By: Kitto
Which filter are you using?
I notice the same problem, my application is L14466, L14477, L14610, L14612. I notice these filters has thinner gasket than the competitor's filters such as Wix 51356, 51365, 51394, 51396, or Mobil M1-103, etc...
I need to tight it up more to prevent leaking from the gasket.


Wow... thought I was the only one! It's thin alright. Especially when you compare it to a NAPA/WIX filter. Even Mobil 1. So you do notice that the filter base is has a greater chance of contacting the mounting face?

I'm using the PL14610 (Bosch 3323) Same filter. I'm not saying it's "bad". I just have noticed that I need to be careful when tightening the filter. At one point I did have a small leak and when I went to tighten the filter, I couldn't really accomplish it because the base was contacting the mounting plate.

Just wondering is anyone else has paid attention to this?


I think I 'may' contact the mounting face during installation just not sure, but I do tight it down to prevent leaking. Do yours leak?
 
Originally Posted By: JGmazda


I'm using the PL14610 (Bosch 3323) Same filter. I'm not saying it's "bad". I just have noticed that I need to be careful when tightening the filter. At one point I did have a small leak and when I went to tighten the filter, I couldn't really accomplish it because the base was contacting the mounting plate.

Just wondering is anyone else has paid attention to this?


I have had the same issue, but only on my CR-V. My Civic never had a problem. I think it may have more to do with the spindle that you screw the filter on to vs. the filter itself, as I've used this exact filter for years without any issues, except once on the CR-V. I couldn't tighten it any more and it leaked just a bit. I also used an Amsoil EaO once and it did the same thing.
 
I haven't noticed a problem with the gasket on any of the PureOnes I've been using, but you do have to be careful not to overtighten them because the slippery PTFE coating (the red stuff) on the gasket makes them much easier to turn on in my experience. Plus, the grippy surface makes it easy to apply too much torque. It is very easy to turn beyond the 3/4 turn point.
 
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I am using Mobil1 Longlife filters on my Subie now. I noticed the P1 filters were leaking sometimes on my subie. Got tired of always having to check so I switched. No problems since
 
Compared to cross-referenced competitor filters many Purolator models have significantly thinner gaskets. This is nothing new. It's exactly why Subaru of America discontinued their oil filter contract with Purolater a few years ago. They all leaked and weeped at the gasket.

For my applications they're all built with cheap gaskets, flimsy barely functioning ADBVs.... For other applications they seem to do a bit better.
 
I personally don't think it is Kool Aid to use a filter that filters better and costs less than others with lesser specs. Plus, many of us have had 0 problems with Pure One filters leaking.
 
Originally Posted By: AuthorEditor
I personally don't think it is Kool Aid to use a filter that filters better and costs less than others with lesser specs. Plus, many of us have had 0 problems with Pure One filters leaking.


Sure, okay, but if we might step away from marketing "specs" for a minute. Isn't that why FRAM is so popular? Why follow the same line-of-thinking with a different brand? There is nothing special about Purolater besides perceived value. And personally, depending on their application, I think they're just average filters.

I haven't had problems with them because of bad luck or improper installation. I've had problems with them because, for my applications, they don't work well. This isn't the world's one-stop-shop brand for all oil filtering needs. No brand is.
 
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There is nothing special about Purolater besides perceived value. And personally, depending on their application, I think they're just average filters.


In my case, the perceived value is that I can usually purchase PureOnes for less and more conveniently than Wix/Napa Gold filters, which have lower "marketing specs" anyway. Labman's tests here on BITOG indicate that Purolator's "marketing specs" are not all hype. For one of my applications I could buy a Motorcraft for less, which is also made by Purolator, but Motorcraft's "marketing specs" indicate it provides less filtration efficiency. From what I've seen on BITOG I'm very wary of Ecore designs (blow outs) so that rules out a lot of SuperTechs and ACDelco filters. Frams only filter with good construction is the Extended Guard, but they're expensive as are Mobil 1 and K&N.

So, for me, the best bang for the buck that I can easily obtain is the Pure One. The PTFE coated gasket, silicone ADBV, and grippy texture are all bonuses that I like. Your situation could very well be different.
 
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Compared to cross-referenced competitor filters many Purolator models have significantly thinner gaskets. This is nothing new. It's exactly why Subaru of America discontinued their oil filter contract with Purolater a few years ago.
Can you provide a citing source/reference that specifically states that be the reason why Subie switched to the cheaper to make Honeywell with fiber/cardboard endcaps? IIRC, there have been other Subie posters here that used the Classic and/or P1 with no leaking issues. Ironically, one of first posts on youtube of a Subie 05 WRX STi oil change is using a P1. Apparently they don't leak on all Subarus.

Over the years I've used dozens of Purolator filters in different variations and applications, including AAP Total Grip, Puro Prem. Plus, Classic and Pure One and never had a leak. That includes the PL/L 14610, 14459, and 10241 applications on different makes and models. They may be thinner than say Wix or others, I don't know. But I don't try to over think it, if it doesn't leak that's all that matters to me. After the gasket makes contact, it's hand tighten 1/2-3/4 turn, especially easy with the P1. Check for leaks, done. The only filter I ever had to leak was dealer installed OEM P type gasket on a Denso.

To each there own, but in my experience I haven't found a better value than Purolator filters. And river_rat's bench tests here seem to confirm that thought.
 
Originally Posted By: sayjac
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Compared to cross-referenced competitor filters many Purolator models have significantly thinner gaskets. This is nothing new. It's exactly why Subaru of America discontinued their oil filter contract with Purolater a few years ago.
Can you provide a citing source/reference that specifically states that be the reason why Subie switched to the cheaper to make Honeywell with fiber/cardboard endcaps? IIRC, there have been other Subie posters here that used the Classic and/or P1 with no leaking issues. Ironically, one of first posts on youtube of a Subie 05 WRX STi oil change is using a P1. Apparently they don't leak on all Subarus.

Over the years I've used dozens of Purolator filters in different variations and applications, including AAP Total Grip, Puro Prem. Plus, Classic and Pure One and never had a leak. That includes the PL/L 14610, 14459, and 10241 applications on different makes and models. They may be thinner than say Wix or others, I don't know. But I don't try to over think it, if it doesn't leak that's all that matters to me. After the gasket makes contact, it's hand tighten 1/2-3/4 turn, especially easy with the P1. Check for leaks, done. The only filter I ever had to leak was dealer installed OEM P type gasket on a Denso.

To each there own, but in my experience I haven't found a better value than Purolator filters. And river_rat's bench tests here seem to confirm that thought.


+1.......I too, haven't found a better value than Purolator filters.....'Best bang for the buck'.
 
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I wish I could take a few comparison pics of different filters showing the "thin" side of things. No doubt, the Purolator is a very good filter. I wasn't trying to say they are faulty. I just wish their gaskets were a bit thicker. Either that or design the base to not be so close to the mounting surface.

Like I've said, I haven't run into this issue with other manufacturers. I think a few people here have noticed this too. So I'm not completely speculating.
 
Do they leak? If they don't then what difference does it make if the gaskets aren't as thick as another manufacturer? I have ~8 Purolator filter of different types and sizes here, the gasket(s) extend past the base/edge depending on size/app, all I need to see. I'm not going to go out and compare them to another manufacturer, as long as they work.

Is it an issue if they don't leak? If it's the gasket thickness that makes it an issue for you, you should switch brands the for your own peace of mind.

Another strange thing about the alledged Subie switch to Honeywell. If Purolator made the filter for Subie at one time, they would have been made it to Subaru specs. That means that the gasket too, (P type?) would have been made to Subaru not Purolator specs.
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And another way to say it, river_rat's tests show, that all things considered the Classic and P1, are more than average filters.
 
My mistake earlier, I was referring to River Rat's tests on here that showed that Pure One's "marketing specs" might actually be close to reality. Frankly, I'm not sure why we should trust one company's stated specs. and not another's. They all claim that their tests are to a certain published standard. Some here seem to not believe that Pure Ones can filter better than others, but what evidence is there that the claims are not true?

If you look at the comparisons on BITOG of cut open Pure Ones and say Wix filters the P1s have a lot bigger filter in the same sized can, with tighter packed media with more folds. That looks to me like a filter that should provide greater efficiency.

In any case, I don't see why the thickness of a gasket is important if the filters that are tightened per instructions don't leak? We have also read on BITOG of Wix filters that leaked from the base, and I think some have said they've had some Champ Labs filters that didn't thread on very securely. I don't think any company is immune to an occasional manufacturing defect.
 
I use PureOne filters on a couple different cars. When the filters are installed to 3/4 turn after the O-ring hits the seat, it does look like the base ring of the filter is pretty close, but it never hits the seat on my cars.

IMO, you don't really want the base ring of the filter to hit before the filter is tight. I don't like it to hit, even on P-ring style filters because I really don't want the seat to get gnawed up by metal-to-metal contact.
 
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I use PureOne filters on a couple different cars. When the filters are installed to 3/4 turn after the O-ring hits the seat, it does look like the base ring of the filter is pretty close, but it never hits the seat on my cars.
+1 Using the popular 14610 as an example, the gasket doesn't extend far past the base. But, with 2/3-3/4 turn after gasket contact, it's never hit for me. Likely with some excess effort(cap wrench) past 3/4 turn, I could perhaps make it hit at some point. But then it would be too tight, which wouldn't be a good thing in any case. Based on the 3 sizes I have on hand, it seems the bigger the filter the greater the thickness/clearance. The 14610 is tighter clearance then the 14459 and 10241.
 
Originally Posted By: JGmazda
I wish I could take a few comparison pics of different filters showing the "thin" side of things. No doubt, the Purolator is a very good filter. I wasn't trying to say they are faulty. I just wish their gaskets were a bit thicker. Either that or design the base to not be so close to the mounting surface.

Like I've said, I haven't run into this issue with other manufacturers. I think a few people here have noticed this too. So I'm not completely speculating.

I have experience of leaking on Purolator. 95 Toyota Camry using Proline filter. 95 Subaru Legacy using Purolator L14610 filter. Compare L14477 and Wix 51396 side by side, you can tell the difference of the gasket. Although they sometimes leak, I am still using them. My solution for the Camry is tight them down more to prevent leak. The Subaru I have change back to real Subaru Filter, the L14460. It seems not to have problem so far... And I still have stash of filters that fit these two cars. Until my stash are gone, I am sticking to Purolator. If I am going to buy a filter now for these two applications, Purolator may not be my first choose.
 
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