I got 11" & 1/16 on the tube and 21" & 3/16 on the dipstick on a 318 and 6&5/8 on one 360 tube (no stick in it) and 6&3/4 on the tube and 16&5/16 on the dipstick on another 360. Bottom line is the level in the sump & I would put 4qts in the sump on a level surface & wherever that falls at on the stick is "full" no matter what the filter capacity is.