Once the filter is off my remote housing, a little low pressure air directed and sealed into the center fitting empties the remote cooler on my Superformance. Running a 428FE with the 8qt Canton pan it takes about 8 1/4 Qts. To check the accuracy of your dipstick, fill to seven Qts., fill your filter and install and give it some time for the
oil to drain down, check the stick and THIS is the Full Level. Add the balance of the
oil left over from the filter (if you drained the cooler), start the car check for leaks. Let it drain for a while and recheck the level. Add additional
oil to bring it back to that marked 7qt. level and you are properly filled. Rick