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Originally Posted by chetrickerman
For the record, the Fram filters got a bad rap because they used cardboard end caps on the filters, which do come apart. BUT the fram XG (synthetic media) filters use steel end caps like most other good brands and I have had great experience with those.
Thank you for the info OP.
It would be interesting to find out the actual efficiency of the OEM filters at 20 microns. Yes a filter may be rated at 20 microns, but that rating may only be at 50%, or 90% efficiency of 20 micron particles.
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It would. My engine longevity experience says it most likely has a high beta rating. Advanced Auto parts shows efficiency rating of 99 at 38 microns. It shows "99mc" for efficiency, which indicates the unit of measure is not correct, so one can question the validity of Advanced's information.