Question about oil seal around dipstick on 360

Wait…. What? Is it leaking where the tube enters the block? (Sealer needs to be used)
Or the dipstick enters the tube? (Blow by or leaking rubber seal on the…. What the heck do you call that shoulder below the handle and above the stick?)
Where the tube enters the block. No,it’s not blowing oil out the top of the dipstick.