Mercury 3.0 MPI ECT User Manual

Section 4 - Maintenance
90-8M0113856 eng DECEMBER 2015 Page 51
IMPORTANT: Do not overfill the engine with oil.
32610
Oil fill cap
Engine Model Capacity Fluid Type
3.0 MPI 3.8 L (4 US qt)
Mercury/Quicksilver 25W‑40 Synthetic Blend Engine Oil, NMMA FC‑W Catalyst
Compatible rated
5. Replace the fill cap.
Changing the Oil and Filter
IMPORTANT: Change the engine oil when the engine is warm from operation. Warm oil flows more freely, carrying away more
impurities. Use only the recommended engine oil.
IMPORTANT: Always use the dipstick to determine exactly how much oil is required.
1. Loosen the oil filter to vent the system.
2. Remove the dipstick.
3. Install the crankcase oil pump onto the dipstick tube.
Crankcase Oil Pump
802889A1
11591
Aids in the removal of engine oil without draining the crankcase.
4. Insert the hose end of the crankcase oil pump onto an appropriate container and use the handle to pump until the
crankcase is empty.
5. Remove the pump.
6. Install the dipstick.
7. Remove and discard the oil filter.
8. Apply engine oil to the sealing ring on the new oil filter.
9. Install the oil filter following the filter manufacturer's instructions. Do not overtighten.
10. With the boat at rest in the water, remove the oil fill cap and add the specified oil to bring the level up to the OK range on
the dipstick. Check the oil level as you fill the system.
IMPORTANT: Do not overfill the engine with oil.
NOTE: Adding 0.95 L (1 US qt) of engine oil will increase the level from the add mark to the top of the OK range.
Engine Model
Capacity Fluid Type
3.0 MPI 3.8 L (4 US qt)
Mercury/Quicksilver 25W‑40 Synthetic Blend Engine Oil, NMMA FC‑W Catalyst
Compatible rated

Mercury 3.0 MPI ECT Specifications

General

Brand	Mercury
Model	3.0 MPI ECT
Category	Outboard Motor
Language	English