Filling - MerCruiser 8.1 H.O. User Manual

Section 5 - Maintenance
NOTE: Ensure that dipstick is installed with oil level indication marks facing the rear of the
engine (flywheel end).
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 full or OK
range and add. Reinstall dipstick into 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 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 oil level.
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a - Dipstick tube
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a - Oil fill cap
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90-864841070 OCTOBER 2007