Purolator One vs Purolator Boss Questions

[Carlostrece]

If anyone is familiar with these, please post a comparison-contrast explanation with some specs/details. I'm interested in using one of these on a high mileage 97 Buick Park Ave with Valvoline Maxlife 5w30 Blend.

I'd like to know what is the nominal particle size filtration rating or claim of each of those filters? I've heard a rumor that the One filters finer than the Boss, but I don't know if that's correct.

 

[GW.]

What model filter do you need?

Reason I ask is Purolator has detailed spec sheets for each filter which is really nice.

Boss is wire backed and generally not efficient. PureOne usually has better efficiency and is not wire backed. Key is to make sure the louvers are fully open on both.

 

[D1dad]

I just bought quite a few of both at Meijer store @30% off. Boss seems heavier and well built with synthetic media. One is less weight with media blend. I’ll probably run the boss on my newer cars and the ones on my older rides. Louvers look open to me and both appear to be made very well.

 

[fantastic]

If anyone is familiar with these, please post a comparison-contrast explanation with some specs/details. I'm interested in using one of these on a high mileage 97 Buick Park Ave with Valvoline Maxlife 5w30 Blend.

I'd like to know what is the nominal particle size filtration rating or claim of each of those filters? I've heard a rumor that the One filters finer than the Boss, but I don't know if that's correct.

Call Purolator with your particular oil filter number & ask for it's "Specification Sheet". It will include it's efficiency. You can request for both the One & Boss OR let us know which filter model because I and others have posted several sheets here already so that could save you a step.

 

[Reloader59]

I did a particle count test on a BOSS PBL14476 at the 500 mile mark. I never got around to doing it again because of costs. The ONE filter is known to filter down to 20 microns. I little better than the BOSS. I do find my results adequate enough to stay with the filter.

 

[Carlostrece]

What model filter do you need?

PL24011

 

[Carlostrece]

Call Purolator with your particular oil filter number & ask for it's "Specification Sheet". It will include it's efficiency. You can request for both the One & Boss OR let us know which filter model because I and others have posted several sheets here already so that could save you a step.

PL24011

 

[ZeeOSix]

I did a particle count test on a BOSS PBL14476 at the 500 mile mark.

A PC at 500 miles on one filter isn't going to tell you much if anything - need more miles on the OCI to really see what's going on with filter performance. All filter's loose some efficiency with use and loading, and filters with low ISO 4548-12 efficiency rating will most likely lose more efficiency with use than a high efficiency ISO rated filter. An ISO Code of 23/20/15 is a bit on the dirty end of the spectrum (especially with only 500 miles of use) compared to some PCs with a higher efficiency filters. If your engine is a debris producer, that ISO code might get worse as the miles increased with that filter. Here's some comparative Blackstone particle counts with way longer than 500 mile samples. MG is the MicroGreen filters with the built-in high efficiency bypass disk (no longer made however).

 

[Carlostrece]

I'm leaning towards the One instead of Boss. I change my oil every 3-5 years, which is less than 1500-2500 miles for my 97 Buick Park Ave nat aspir. So I think the One (PL24011) would be an ideal choice for me, but correct me if I'm wrong.

Before anyone freaks out about the 3-5 years between oil changes... I do that because I drive less than 500 a year and my car is stored in a temp controlled garage that is around 50-60F in winter and 70-80F in summer. My car never gets colder than 50F and is usually closer to 60F. No very cold starts. I drive 50/50 mix city/highway. I change my oil when the condition indicates it needs it. My car doesn't burn oil, has good power and excellent gas mileage, and runs smooth.

I use mostly tier one 89 oct mid grade gas (nat aspir 3800). Usually Shell gas, sometimes Chevron or Union 76.

 

[GW.]

I did a particle count test on a BOSS PBL14476 at the 500 mile mark. I never got around to doing it again because of costs. The ONE filter is known to filter down to 20 microns. I little better than the BOSS. I do find my results adequate enough to stay with the filter.

View attachment 258711

If I remember correctly @twX had collected a bunch of particle count tests and the Boss was the worst.

 

[GW.]

PL24011

Thread 'Purolator 99% Efficiencies Confirmed: Boss @46um, One @30um (PBL24011 / PL24011)'

Jul 18, 2023

I had heard that the Purolator Boss was really low efficiency 99% @46um, but when I cut the filter open for my exact application PBL24011 it looked sooo good that I was hoping this number was for some other Boss filter and the PBL24011 would be much better - so I emailed Tech Service and they confirmed Boss = 99%@46um and One = 99%@30um:

PBL24011 construction quality is outstanding:

And the media is beautiful (both sides):

• Robvette
• Replies: 23
• Forum: Engine Oil Filters

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[twX]

If I remember correctly @twX had collected a bunch of particle count tests and the Boss was the worst.

Here are the averages for all filters that I have more than one PC for. The BOSS ranks second to last after Toyota OEM. I've only included the third ISO numbers here since Blackstone hasn't been consistent over the years with how they estimate counts for the smaller particles. The averages are based on between 4 and 14 PCs per filter, except for the BOSS which is an average of only 2 PCs.

 

[Lilliston]

Here are the averages for all filters that I have more than one PC for.

View attachment 258735

Are these from recently enough that they likely represent the current-design Fram Ultra (and others, for that matter)? I assume so given what I'd seen from several years ago about a Fram, but figure I should ask to make sure.

 

[ZeeOSix]

If I remember correctly @twX had collected a bunch of particle count tests and the Boss was the worst.

It showed the worse of the UOA PCs I've collected off this site. Just like the table in post 12 shows.

 

[twX]

Are these from recently enough that they likely represent the current-design Fram Ultra (and others, for that matter)? I assume so given what I'd seen from several years ago about a Fram, but figure I should ask to make sure.

They aren't all very recent. All but one of the FRAM Ultras are the old design. Some of the Amsoil and Toyota PCs are recent. Others are over 10 years old. The Mobil 1 and PurolatorOne PCs are mostly ~15 years old.

 

[ZeeOSix]

They aren't all very recent. All but one of the FRAM Ultras are the old design. Some of the Amsoil and Toyota PCs are recent. Others are over 10 years old. The Mobil 1 and PurolatorOne PCs are mostly ~15 years old.

Are those all UOA PCs off your vehicles? The average >14 microns count seems pretty low compared to the >14u counts in the table in post 8, except for OG Ultra #2. I think looking at the >6u particle counts might be a better way to compare, as the higher efficiency filters will stand out better at that level.

 

[Lilliston]

That kinda surprises me, but thank you.

 

[Carlostrece]

A PC at 500 miles on one filter isn't going to tell you much if anything - need more miles on the OCI to really see what's going on with filter performance. All filter's loose some efficiency with use and loading, and filters with low ISO 4548-12 efficiency rating will most likely lose more efficiency with use than a high efficiency ISO rated filter. An ISO Code of 23/20/15 is a bit on the dirty end of the spectrum (especially with only 500 miles of use) compared to some PCs with a higher efficiency filters. If your engine is a debris producer, that ISO code might get worse as the miles increased with that filter. Here's some comparative Blackstone particle counts with way longer than 500 mile samples. MG is the MicroGreen filters with the built-in high efficiency bypass disk (no longer made however).

View attachment 258731

What do those particle count numbers represent? The number of particles that got through/past the filter? Is a lower number of particles better?

 

[Carlostrece]

Here are the averages for all filters that I have more than one PC for. The BOSS ranks second to last after Toyota OEM. I've only included the third ISO numbers here since Blackstone hasn't been consistent over the years with how they estimate counts for the smaller particles. The averages are based on between 4 and 14 PCs per filter, except for the BOSS which is an average of only 2 PCs.

View attachment 258735

According to a Lake Speed Oil Geek video... Toyota filters are (he says) made by Mobil 1. If so, why would Toy & M1 score differently?

Edited in Later... I just realized Lake Speed Oil Geek didn't say that Mobil makes Toyota filters. He said Mobil 1 makes Toyota oil. He didn't mention the filters.

 

[Carlostrece]

Here's why I started this thread... I've been happy using Baldwin B35-S oil filters for years on my 97 Buick Park Ave with no problems that I know of. Trucking fleets, farmers, construction companies, heavy equipment operators, and many in 4x4 community like Baldwin and recommended Baldwin to me. So I assumed Baldwin is good, possibly excellent.

Baldwin's build quality appears to be top notch. Baldwin B35-S specs claims it filters 18 microns nominal. Wix 51036 claims it filters 21 microns nominal. What does that mean? Can we trust the manufacturers claimed specs to be truthful and accurate?

Baldwin specs and reputation make it seem like a better-than-average filter for a good price, and better than Wix for $1 more. How much can I rely on their claimed specs and reputation?

I recently watched a Brand Rank video on Youtube (not the Lake Speed guy) where a young guy tests oil filters using a testing contraption he built. He tests flow, capacity, and filtration efficiency. He seems serious, careful, and he built (what seems to my half educated mind) to be good testing equipment, but what do I really know? Nothing I guess.

He's been testing many brands/models of oil filters and ranking them. Baldwin tested very well for flow and capacity, but very poorly for filtering efficiency. Purolator Boss tested the best overall. At least according to the guy who made the series of videos. I don't think he tested Purolator One.

Regardless of his tests and claims... I can clearly see the Purolator One would be a better choice for me than the Boss. Also, I'm having a hard time trusting an amped up over excited Gen Z guy telling me Baldwin doesn't filter out much particles when older more experienced truckers, farmers, and equipment operators think Baldwin is a great filter.

Is the kid wrong about Baldwin being poor at filtering? Is the kid wrong about Purolator Boss being the best overall filter?

I do not know which size filters the kid was testing in the video series.

I changed my oil today and am using a new Baldwin B35-S filter because I'd already bought it. Next time, I could use a Purolator One PL24011 which would cost less. What I care about more than cost is good filtration.

I just want a really good filter that I know I can rely on. This shouldn't be complicated, but that kid got my mind spinning and nervous now. I don't know if I can trust that kid to know what he's talking about. I don't know if I can trust manufacturers claims/specs either. How trustworthy do you think manufacturer specs are?