How much oil 440?

Since you don't have a HV oil pump then you can run 5 total in there. I use 6 when I have that pan.

Change oil with conventional oil. Pour in 5 or 6 total. Run it around and get it warm. Park it on level for 5 minutes and see what stick says. Remark or make a note of the level with 6 in it.

I wouldn't keep adding oil until it reads full, you could have a completely wrong dipstick or tube.