I have a 1987 Concord Mach 2, 21 1/2 ft. runabout With a 5.7L, 160 HP engine with an OMC cobra stearn drive Model# 984543 Ser. # TO498614. I am trying to fill the stearn drive with oil. I have been told to fill from the bottom plug until it runs out of the side plug which is approx. 12 inches...
