Originally Posted By: goodtimes
There isn't any proof Toyota filters are 51% efficient @ 20 microns in the multi pass, (too fast), test. Someone said it was so over six years ago, and drew a picture.
Microgreen said their filter was super efficient down to 2 microns without documentation, yet some people believe it because they "said so".
Originally Posted By: goodtimes
There is documented proof from an independent party on their letterhead a Toyota copy filter was superior in particle filtration to a Fram Ultra. In a real world test, on a car that puts particles into the oil. People believe the no proof Toyota claim and it becomes a rumor, then becomes a reference.
There was also documented proof posted on this board that an Ultra made a UOA ISO cleanliness particle count in a motorcycle with a wet clutch and shared transmission cleaner than the same new oil used in the bike.
Originally Posted By: goodtimes
My unpopular theory is cellulose, wood cells, filters finer over time than any all synthetic full flow filter. Filters combining wood cells and synthetic fibers is the best combo, in my unpopular opinion.
Technical articles by makers of full synthetic media say just the opposite, as does efficiency test data.
There isn't any proof Toyota filters are 51% efficient @ 20 microns in the multi pass, (too fast), test. Someone said it was so over six years ago, and drew a picture.
Microgreen said their filter was super efficient down to 2 microns without documentation, yet some people believe it because they "said so".
Originally Posted By: goodtimes
There is documented proof from an independent party on their letterhead a Toyota copy filter was superior in particle filtration to a Fram Ultra. In a real world test, on a car that puts particles into the oil. People believe the no proof Toyota claim and it becomes a rumor, then becomes a reference.
There was also documented proof posted on this board that an Ultra made a UOA ISO cleanliness particle count in a motorcycle with a wet clutch and shared transmission cleaner than the same new oil used in the bike.
Originally Posted By: goodtimes
My unpopular theory is cellulose, wood cells, filters finer over time than any all synthetic full flow filter. Filters combining wood cells and synthetic fibers is the best combo, in my unpopular opinion.
Technical articles by makers of full synthetic media say just the opposite, as does efficiency test data.