Originally Posted By: Motorking
We test all filters using ISO-4548-12 tests. this test specifies the "test dirt" be 10-20 microns in size.
Here is why this is generally accepted particle size for filter testing
"Abrasive engine wear can be substantially reduced with an increase in filter SPE(MP). Compared to a 40 micron filter, engine wear was reduced by 50% with 30 micron filtration." (98% point)
"Likewise, wear was reduced by 70% with 15 micron filtration."
(SAE TPS 881825 p5 - David R. Staley, General Motors Corp. 1988
GM spent millions of dollars on the study that produced these results.
Yet, these studies are on particulars apps or just generalized testing with a 'dummy' engine?
It's hard to quantify an absolute, other than to say: Better filtration is typically preferred. That's saying what we already know, JMO.
So, if it comes down to it as far as most can observe here, there doesn't seem to be much performance difference in entry level filtration or 'basic'/'standard' oil filters in the consumer market.
I'd imagine, more so that oddly designed filters(comparative to a 'norm') or new filter design/composition is more of the unknown.
I have used Fram before, I prefer synthetic media (even if a 'blend) filters when I'm performing an oil change past 5,000 miles personally just in my own preference. Otherwise, the nutshell seems to be the Fram's endcap design for it's standard filters compared to others like Purolator, Wix, etc. As far as what is in the states.
Originally Posted By: Motorking
Sayjac,
Would you like to visit the FRAM engineering lab with travel expenses on me? This sept 12-13th. Dinner and one on one discussion with the president of the company, the chief engineer and marketing VP. A chance to really learn about filtration and have input on product development. Let me know at
[email protected]
^Yes, sayjac and Zee0Six are all better candidates than myself to take you up on this invitation. They would be more thorough and appreciate for the experience as our hardcore oil filtration posters.
All the same, thanks for the invite. I'm not in a position to go, unfortunately.
...and...I'm fixing my car.