Jalopnik cellulose vs synthetic oil filter media article

[Johnny248]

Saw this today on Jalopnik. Essential it says that synthetic media is better. What I am questioning is that they state paper is usually good for 40-20 micron, synthetic 10-5 with someone able to filter 2 micron without restricting flow. Is this a thing? Where are these 2 micron filters?

https://www.jalopnik.com/1985204/cellulose-vs-synthetic-oil-filters/

 

[twX]

Saw this today on Jalopnik. Essential it says that synthetic media is better. What I am questioning is that they state paper is usually good for 40-20 micron, synthetic 10-5 with someone able to filter 2 micron without restricting flow. Is this a thing? Where are these 2 micron filters?

The type of media used doesn't have that much to do with the efficiency of a filter. There are filters with synthetic media rated at over 40 micron, and filters with cellulose media rated at under 5 micron. Any filter material can be made more efficient by reducing the pore size.

Engine oil filters that are 99% efficient at 2 micron would be reserved for bypass filtration applications.

 

[Mainia]

Yep, Kidney Loop.

 

[dishdude]

Jalopnik is basically AI slop.

 

[Johnny248]

Jalopnik is basically AI slop.

It used to be an entertaining site. It seems like most websites are now just AI and click bait without ever actually having decent material to read.

 

[BHopkins]

Jalopnik is basically AI slop.

I don't know about that. Perhaps that is what it has become. But long before AI, it has always seemed that Jalopnik articles are mostly from newbie car enthusiasts that want their 15 minutes of fame, and more importantly, plenty of internet traffic, but without doing the homework to really write articles with any real substance.

 

[dishdude]

I don't know about that. Perhaps that is what it has become. But long before AI, it has always seemed that Jalopnik articles are mostly from newbie car enthusiasts that want their 15 minutes of fame, and more importantly, plenty of internet traffic, but without doing the homework to really write articles with any real substance.

An article was posted a couple years ago about manual transmissions and one of the lines was "feeling the thrill of the clutch under your hand".

What does that even mean? Clearly written by someone that clearly isn't a car enthusiast.

 

[ZeeOSix]

What does that even mean? Clearly written by someone that clearly isn't a car enthusiast.

Written by a self-driving car.

 

[Zap1967]

There used to be some intelligent enthusiast writers on that site but it’s all gone now. Most articles read like Facebook click bait. It got overly political 5 years ago or so and the exodus of the good writers started.

I’m not sure I’d trust any of their staff now to know to use diesel or gasoline in my vehicle.

 

[Hohn]

The type of media used doesn't have that much to do with the efficiency of a filter. There are filters with synthetic media rated at over 40 micron, and filters with cellulose media rated at under 5 micron. Any filter material can be made more efficient by reducing the pore size.

I wish more people understood this.

For the most part, any media can be be made to target any particle removal efficiency value. But removal efficiency is only one of the three tradeoffs for media design. The other two are restriction vs flow rate and holding capacity. So if you don't care how much stuff the filter holds or how much restriction it produces, it's very easy to design a media for high particle removal efficiency.

But cheap media has a lot of variation in pore size. This not only makes the holding capacity poor, but the restriction starts out elevated and goes up from there.

The fourth element of filter compromise is physical size. You can get away with a lot of you just allow a physically huge filter and slow face velocity. Even with old tech media that would otherwise have pretty poor restriction-at-flow values.

This is partly why old tech filters like Baldwins and such are still so prevalent-- in the industrial equipment that is their primary market, the filter are large and frequently serviced, and a cheap cellulose media can be sufficient. And all the same economic factors that make Rotella the cheap commodity oil also steer things towards cheap cellulose filters.

 

[goblin]

Everything good from Jalopnik bled to The Autopian or went independent Youtube.
I for one thank Jalopnik for having made me discover The Autopian - Jalopnik was so consistent in not publishing any of my comments, ever (wait for approval) and lacking any support whatsoever - email or otherwise, that they made me look elsewhere. I don't care that it's Discus or whoever's technical fault. Fix your stuff.

That was when there were things worth commenting on, which was a while back.

 

[Fair enough]

The type of media used doesn't have that much to do with the efficiency of a filter. There are filters with synthetic media rated at over 40 micron, and filters with cellulose media rated at under 5 micron. Any filter material can be made more efficient by reducing the pore size.

Engine oil filters that are 99% efficient at 2 micron would be reserved for bypass filtration applications.

It seems synthetic mixed with cellulose has been the solution now in Asia to get low enough restriction with small enough pores. Synthetic has smooth consistent fibers which may to be the main factor lowering resistance. I don’t know but looking at it from a simple perspective. Fram USA went to two plies full synthetic, now Puro goes to two plies blend on the gold filter, so they do know the limits of what media can do.

 

[ZeeOSix]

It seems synthetic mixed with cellulose has been the solution now in Asia to get low enough restriction with small enough pores.

Total media area is a big factor in controlling the resulting dP vs flow of the media. Those Asian filters seem to have a pretty decent amount of media area. The old PureONE had tons of filter media too, and back when it was the yellow grippy can (before M-H got hold of them) it was rated at 99% @ 20u and had a pretty low dP vs flow curve per Purolator lab data. It was a long running misconception that the PureONE back then was "too flow restrictive" because it was so efficient was proven wrong with the dp vs flow lab data.

 

[samiamz]

Definitely sounds like AI generated generic garbage. Byline lists a guy who is out of the Phillipines. Half the article is about cellulose paper filter, and no mention of synthetic blend media which accounts for vast majority of oil filters now!

 

[Fair enough]

Total media area is a big factor in controlling the resulting dP vs flow of the media. Those Asian filters seem to have a pretty decent amount of media area. The old PureONE had tons of filter media too, and back when it was the yellow grippy can (before M-H got hold of them) it was rated at 99% @ 20u and had a pretty low dP vs flow curve per Purolator lab data. It was a long running misconception that the PureONE back then was "too flow restrictive" because it was so efficient was proven wrong with the dp vs flow lab data.

Toyota Denso probably are the kings of media surface area, and at least are made in Thailand not China. Plus excellent center tube holes and a design for cleanliness.
So now you believe Purolator lab data from the USA.

 

[ZeeOSix]

So now you believe Purolator lab data from the USA.

Why wouldn't I believe lab test data from Purolator themselves? Purolator before Mann-Hummel messed them up ran a dP vs flow test on a PureONE and gave the data.