Fram Endurance vs Purolator Boss oil filters

[ZeeOSix]

The Boss is far from a rock catcher.

99% for particles greater than 46u is what I'd call a "rock catcher" relative to high efficiency filters that are 99% @ 20 microns. The sister rock catcher efficiency to that is 50% @ 20 microns.

 

[tolian21]

If not FRAM endurance or BOSS, the next level are Amsoil and Royal Purple @ $20 per filter. No thank you!

 

[Jw95]

Endurance has been consistently showing a leaking bypass leaf spring in c&p’s. Bad stamping.

I may use it on just my truck and use something else on the cars. The truck has an internal bypass valve so they aren’t on the filter. I’ll still do more research on them. I’ve been trying to find efficiency testing on microgard select and Carquest premium filters.

 

[kschachn]

99% for particles greater than 46u is what I'd call a "rock catcher" relative to high efficiency filters that are 99% @ 20 microns. The sister rock catcher efficiency to that is 50% @ 20 microns.

Why do people struggle with this?

 

[Glenda W.]

I may use it on just my truck and use something else on the cars. The truck has an internal bypass valve so they aren’t on the filter. I’ll still do more research on them. I’ve been trying to find efficiency testing on microgard select and Carquest premium filters.

Here are the CQP and Microgard Select efficiencies. 99%@25 and 99%@20 respectfully.

 

[Hootbro]

Why do people struggle with this?

Because when people are paying $16 for a so called "premium" oil filter, natural to make the assumption it has greater efficiency. I can understand why the mistake gets made.

 

[Patman]

Why are there different efficiency ratings if the CQP and Microgard Select are the same filter?

 

[Glenda W.]

Why are there different efficiency ratings if the CQP and Microgard Select are the same filter?

I’ve emailed them multiple times with no response. Since the Microgard Select specifies ISO 4548-12 I lean towards the 99%@25.

 

[Jw95]

I’ve emailed them multiple times with no response. Since the Microgard Select specifies ISO 4548-12 I lean towards the 99%@25.

I was curious about that as well but I greatly appreciate it. I’ll just use these for now in.
Hopefully ascend filtration can test more filters and the updated ones with recent changes as well. Would love to see new info and on more filters.

 

[Mainia]

I was curious about that as well but I greatly appreciate it. I’ll just use these for now in.
Hopefully ascend filtration can test more filters and the updated ones with recent changes as well. Would love to see new info and on more filters.

That will NEVER NEVER EVER happen again, unless you come up with $5,000-$8,000, and IF he actually wants to lift a finger.

 

[Jw95]

I’d rather rebuild and upgrade my motor for 5-8k lol.
Would be awesome if companies could sponsor it.

 

[Faawrenchbndr]

If not FRAM endurance or BOSS, the next level are Amsoil and Royal Purple @ $20 per filter. No thank you!

An AMSOIL filter costs me $14.80
Bonus plan is I don’t have to drive to WallyMart

Guess it’s $19.05 without the the preferred plan

 

[BrendanC]

If not FRAM endurance or BOSS, the next level are Amsoil and Royal Purple @ $20 per filter. No thank you!

endurance, amsoil and royal purple are all the same filter

 

[Fair enough]

Catching a 25 micron particle fragment that’s irregular in shape is fine filtration, and catching a 46 micron irregular particle is rock catching. Ok.

 

[Glenda W.]

Catching a 25 micron particle fragment that’s irregular in shape is fine filtration, and catching a 46 micron irregular particle is rock catching. Ok.

99%@46 or 50%@22 inefficiencies.

 

[Fair enough]

Catching a 25 micron particle fragment that’s irregular in shape is fine filtration, and catching a 46 micron irregular particle is rock catching. Ok.

The point being getting wrapped up in numbers on paper versus reality. Fine filtration is 99%@ .001”, rock catcher is 99%@less than .002”? A little exaggeration of words?

 

[Glenda W.]

.001”= 25.4 microns. So it’s a big difference. Small particles cause the most wear.

The need to continually defend Boss/Purolator??? Odd

 

[goingplacesanddoingstuff]

Remember, empirical evidence corroborated with the latest marketing published numbers is nothing compared to a potential typo in Calibri on a years-old Word export pdf saved to a customer support rep’s flash drive from their 2010 stay at the Hilton in Las Vegas.

Companies always budget updating their technical pdf exports and always ensure support has the latest version preferentially over updating their marketing, don’t you know.

 

[ZeeOSix]

^^^ What?

 

[ZeeOSix]

The point being getting wrapped up in numbers on paper versus reality. Fine filtration is 99%@ .001”, rock catcher is 99%@less than .002”? A little exaggeration of words?

It can make a difference to moving parts with tight clearances. A lot of discussion of wear vs particle size has been done here with links to study sources. Go do some research on it ... easy to find on the 'net. Particles less than 20u cause the majority of wear because those are the particles that can get between tight moving parts.