do remember that the Morgan oil tank holds 6 quarts where the normal sump on a motorcycle would only hold 3 + quarts. But as others have mentioned run for a minute or so to get all the oil back into the tank (out of the lower engine area) and then anywhere between the lines is fine

Rodger
2018 M3W "Dreamers on the Rise"
2004 Plus 8 (wife's)
old Goldwings and a couple of Harleys