Checking; Filling; Changing Oil And Filter; Easy Engine Oil Drain System - Mercury 4.3 TKS series Operation & Maintenance Manual

Checking

1. Stop the engine. Allow approximately five minutes for the oil to drain into the oil pan. The boat must be at rest in the water.
2. Remove the dipstick. Wipe clean and reinstall fully into the dipstick tube. Wait 60 seconds to allow trapped air to vent.
NOTE: Ensure that the dipstick is installed with oil level indication marks facing the rear of the engine (flywheel end).
a
IMPORTANT: Add the specified engine oil to bring the level up to, but not over, the FULL or OK range mark on the
dipstick.
3. Remove the dipstick and observe the oil level. Oil level must be between the FULL or OK range and ADD. Reinstall the
dipstick into the dipstick tube.

Filling

IMPORTANT: Do not overfill the engine with oil.
IMPORTANT: Always use the dipstick to determine the exact quantity of oil or fluid required.
1. Remove the oil fill cap.
IMPORTANT: Add the specified engine oil to bring the level up to, but not over, the FULL or OK range mark on the
dipstick.
2. Add the specified engine oil to bring the level up to, but not over, the FULL or OK range mark on the dipstick. Recheck the
oil level.
3. Replace the fill cap.
Engine Oil Capacity
3.8 Liter (4 US qt)

Changing Oil and Filter

Refer to the Maintenance Schedule for the change interval. Engine oil should be changed before placing the boat in storage.
IMPORTANT: Change engine oil when the engine is warm from operation. Warm oil flows more freely, carrying away more
impurities. Use only recommended engine oil (refer to Specifications).

Easy Engine Oil Drain System

NOTE: Boat must be out of the water to perform this procedure.
90-8M0113857 DECEMBER 2015
eng
Mercury/Quicksilver 25W‑40 Synthetic Blend Engine Oil, NMMA FC‑W Catalyst Compatible rated
a - Dipstick tube
a - Oil fill cap
a
6501
Fluid type
Section 4 - Maintenance
Page 33