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CC152
Changing Fluids
See MAINTENANCE CHART for lubricant change frequency. Lubricant should be changed before placing boat
in storage.
Transmission fluid should be changed at specified intervals by your Authorized MerCruiser Dealer.
CHANGING CRANKCASE OIL AND FILTER
IMPORTANT: Change oil when engine is warm from operation. Warm oil flows more freely, carrying away
more impurities. Use only recommended motor oil (see SPECIFICATIONS).
1 With engine at normal operating temperature, remove oil drain hose that is connected near the engine thermo-
stat housing. Remove fitting from end of hose. Lower hose into appropriate container and allow oil to drain. When
oil has drained completely, reinstall fitting in end of hose and and secure hose to engine using the attached clip.
2 Turn oil filter counterclockwise (to left); remove and discard old oil filter and old sealing ring. Coat sealing ring
on new filter with motor oil. Install new sealing ring and filter by turning clockwise (to right). Tighten filter securely.
Do not overtighten.
3 Remove oil filler cap. Add correct type oil (see SPECIFICATIONS) to bring level up to, but not over FULL mark
on dipstick.
IMPORTANT: Always use dipstick to determine exactly how much oil is required.
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