MerCruiser 8.1 MAG, Owner'S Manual

Page: 78 / 152

Section 5 - Maintenance
Page 70 90-864839070 AUGUST 2007
2. Coat sealing ring on new filter with engine oil and install.
3. Tighten oil filter securely (following filter manufacturer's instructions). Do not
overtighten.
4. Remove oil fill cap.
IMPORTANT: Always use dipstick to determine exactly how much oil is required.
5. Add recommended engine oil to bring level up to the bottom of the OK range on the
dipstick.
6. With the boat at rest in the water, check the oil level and add specified fluid to bring the
oil level up to, but not over, the full or OK range.
NOTE: Adding 0.95 liters (1 quart) of engine oil will raise the level from the add mark to the
top of the OK range.
All Models Capacity Fluid Type
Engine Oil (With Filter)
8.5 liters
(9 U.S. Quart)
Mercury/Quicksilver Synthetic Blend MerCruiser Engine Oil
25W‑40
7. Start the engine, run the engine for three minutes, and check for leaks. Stop the engine.
Allow approximately 5 minutes for the oil to drain into the oil pan. The boat must be at
rest in the water.
Power Steering Fluid
Checking
1. Stop the engine and center the sterndrive unit.
2. Remove the fill cap/dipstick from the power steering pump reservoir and observe the
level.
a.
Proper fluid level with engine at normal operating temperature should be within
the warm range.
b. Proper fluid level with engine cold should be within the cold range.
8484
a
b
c
a - Power steering pump reservoir
b - Cold range
c - Warm range