yeah, 10K is ok without changing the filter, but I like to keep the filter from going into bypass and put a new one in there on my gassers.
the 617 would be capable of that too if it had a decent bypass soot collection filter, but alas even the best (I forget what brand...) only had adequate soot removal. and I'm uncomfortable letting that grit ride long on my bearings.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!