Originally Posted by geeman789
Originally Posted by Linctex
My 50,000 mile Fram Tough Guard is almost ready! (it is at 49,000 miles now)
Three possible outcomes ...
1) Filter looks ok.
2) Filter looks ok, but has been in by-pass for 10's of thousands of miles, and really hasn't FILTERED anything.
3) Filter media is MUSH, and is now spread throughout the engine ...
4) Most likely somewhere between #1 and #2, bypassing a little more than it originally did, but still filtering most of the oil.
5) Media torn.
I'll retire my Tough Guard 10358 cartridge at about half that mileage this fall.