Re: 1993 60 horse johnson
About 22 oz.Best way to assure that you get a complete fill is to feed from the bottom drain hole until it weeps from the top vent hole.Some of the lube you buy will come in squeeze tubes for this purpose.Just got to be quick with the drain screw when reinserting after filling.I use a locking end screwdriver and it works pretty well.Good luck.
