Filling; Changing Oil And Filter - Mercury MerCruiser Diesel Inboard 2.8L Operation & Maintenance Manual

Section 4 - Maintenance
3. Remove the dipstick and observe the oil level. The oil level must be between the marks on the dipstick. If necessary, add
oil. Refer to Filling.
b
a

Filling

IMPORTANT: Do not overfill the engine with oil.
1. Remove the oil fill cap.
c
b
a
2. Add the specified oil to bring the oil level up to, but not over, the maximum mark on the dipstick.
2.8L
Engine oil (with filter)
4.2L
Engine oil (with filter)
IMPORTANT: Always use the dipstick to determine the amount of oil required to refill the engine oil.
3. Install the oil fill cap.

Changing Oil and Filter

See the Maintenance Schedule for the change interval. You should change the engine oil before placing the boat in storage.
IMPORTANT: Change the engine oil when the engine is warm from operation. Warm oil flows more freely, carrying away more
impurities. Use only recommended engine oil. See Specifications.
1. Start the engine and allow it to warm up to normal operating temperature.
2. Stop the engine and allow some time for the oil to drain into the oil pan (approximately five minutes).
3. Remove the fitting from the end of crankcase oil drain hose.
Page 36
Typical
a - Engine cover
d
b - Oil fill cap
c - Access panel removed
d - Engine oil dipstick
37281
Capacity
8.9 L (9.4 U.S. qt)
Capacity
13.8 L (14.6 U.S. qt)
Typical
c
a - Oil fill cap
b - Dipstick
c - Maximum mark
d
d - Minimum mark
37285
Fluid Type
4‑Cycle 15W‑40 Marine Engine Oil
Fluid Type
4‑Cycle 15W‑40 Marine Engine Oil
90-8M0133679 JUNE 2017
eng