I'm at 300k on my '01. My point is this: I drained the HPOP reservoir, ran it, sucked it out again, ran it, sucked it out again, ran it, sucked it out again....and so on and so on. Even with the fresh oil in the motor every single time I sucked out the old oil it was black. After a while it became too much and appeared to be a never ending task. Change it, fill it with fresh, send it.....lol. Not arguing with what you are doing but my time is more valuable than chasing down a quart of old oil intermingling with the new lol.