Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 422Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 422

NON-BIGFOOT GEAR HOUSING
Filling Gear Housing with Lubricant
NOTE: Gear housing lubricant capacity is approximately 14.9 fI OZ (440 ml)
If gear housing is installed on outboard, disconnect (and isolate) spark from spark plugs before near the

ACAUTION
Do not use automotive grease in the gear housingUse only Quicksilver Gear Lube1Remove any gasket material from gaskets on "Fill" and "Vent" plugsand "Vent" plugs and gear housingInstall new