Question about Toyota oil filters (1 Viewer)

[JCruse]

This has probably been covered before but I can't find it.

My question concerns this chart below from the Amsoil website:






WTF?

Why the poor performance?

 

[Bogo]

20 microns is tiny. Does it matter to an engine? What is the thickness of the oil film between moving parts?

 

[JCruse]

Well Idunno, that's why I'm asking you.

However:

But the smallest grit that passes through- road dust, manufacturing scarf, and engine metal-flake in the 5-20 micron range - accounts for up to 60% of all engine wear. These microscopic particles closely match the precision clearances between critical engine components; they can enter the spaces between bearings, rings, and other components, to damage metal surfaces, altering tolerances, fatiguing components and generating additional debris.


Amsoil Synthetic Oils

 

[crikeymike]

Wouldn't excessive filtering (filters more stuff out) actually restrict the flow and adjust the pressure of the whole system? I remember from my days of working in auto parts stores that the filters have bypass holes, so if they get too gunked up, the oil would bypass the filter anyway. That's my recollection, but it's 15+ years ago now...

But who really knows at the end of the day? The people that designed the engine probably know best. Running OE oil and OE oil filters has to be the best way I would think for the best longevity of the engine.

 

[toyotaspeed90]

I don't have part numbers on top of my head like I used to - I do know that not all Toyota filters are made equal. In the MR2 world, for instance, very few want to run the US filter as it is far subpar to the JDM variant, which can be ordered by the case (and for many engines is the filter new cars/engines will ship with, then Toyota uses a US filter when doing the changes).

So first thing I would do is question which filter that specifically is (and maybe the testing environment/real world applications), since their goal is to make a graph showing their superiority in their products.

 

[Tapage]

Let's put it this way .. you can have a hi filtration filter .. that would require a system ( pump / galleries / tolerances ) that work accordingly with it ... I'm pretty sure Mr. T account that at the time of oil filter design ..

If you are concern with your Toyota filter capabilities, do a oil analysis test .. even tho you can add one of those AMSOIL ( and many other brands ) hi filtration by pass systems ..

Universal Dual Remote Bypass System

 

[snobdds]

My powerstoke requires a micron rating of 2 microns. Soot in diesel fuel is very fine but will destroy an engine. I would be very suspect of the amsoil report, 20 microns is actually a pretty low rating for a filter.

 

[White Stripe]

I use Napa platinum filters. They have really nice filter media.

 

[toyotaspeed90]

I use Napa platinum filters. They have really nice filter media.

They're reboxed/branded Wix filters.

 

[Cruiserdrew]

Amsoil is big on comparisons that show Amsoil on top in a semi-scientific-sounding format. Take with a HUGE grain of salt anything they publish.