Thanks for the help!
I just replaced my oil this weekend in my K46.
The 'vent', with a rubber cap and plug is where you want to go.
The vent is actually in 2 parts. a 'cap' and a 'plug'.
The cap pulls off the plug and then the plug can be taken out.
I first thought when taking it out that I was destroying the cap because it looked initially like a single piece that was tearing when I took it out. Once the cap was offf then you can remove the plug. When the plug was out I had to put the cap back on the plug it and it took some 'fiddling' to do so.
I measured what I took out and got 2.25 quarts out of mine.
I put synthetic back in, Now I can do 'wheelies'. :thThumbsU (at least it did when I did the power starts/stops to purget the air)
I replaced mine at 75 hours, mainly because the L130 sat for over 2 years in a garage and I was wondering if I was getting moisture in it from sitting and doing nothing