I use 6.4 oz on my Ironhead, you see, I know this because I have a SHOP MANUAL. In fact I have 2 of them. Now if it seems that Adam and I are being hard on you, it's because as fellow Harley riders, we expect more from you.
Why are you changing the oil anyway? Service? If so, how did you know without a manual?
Hmmmm. Are you testing us?
When your'e done playing around, swing by, we'll go riding.