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Do not drain the closed‑cooling section for storage. The closed‑cooling section should be kept filled year‑round with an
acceptable antifreeze/coolant solution to avoid rust forming on the internal surfaces. If the engine will be exposed to freezing
temperatures, ensure that the closed‑cooling section is filled with a properly mixed antifreeze/coolant solution to protect the
engine and closed‑cooling system to the lowest temperature to which they will be exposed.
NOTE: It is recommended that a 50/50 solution of coolant (antifreeze) and deionized, purified water be used. A 50/50 solution
will provide freeze protection to –35° C (–31° F). Decreasing the solution to 40/60 will provide freeze protection to –25° C
(–13° F). Even in the warmest climates, never decrease the solution below 40/60. Increasing the solution to 60/40 will provide
freeze protection to –50° C (–58° F).
IMPORTANT: The antifreeze/coolant used in these marine engines must not contain silicate ethylene glycol. The use of other
types of engine coolant that is not approved, may cause fouling of the heat exchangers and overheating of the engine. Do not
combine different types of coolants without knowing that they are compatible. Refer to the coolant manufacturer's instructions.
The acceptable antifreeze/coolants is listed in the following table. Refer to Section 5 ‑ Maintenance for respective change
intervals.
Tube Ref No.
Extended Life Antifreeze/Coolant
122
Engine Oil
Discharge of oil, coolant, or other engine/drive fluids into the environment is restricted by law. Use caution not to spill oil,
coolant, or other fluids into the environment when using or servicing your boat. Be aware of the local restrictions governing
the disposal or recycling of waste, and contain and dispose of fluids as required.
To optimize the performance of this engine in marine applications, Mercury strongly recommends the use of Quicksilver 5W‑30
Full Synthetic TDI Engine Oil. This oil meets international ACEA C3 specifications.
2.0L
Engine oil (with filter)
Engine Specifications
Description
Engine type
Induction type
Displacement
Firing order
Bore
Stroke
Rated engine RPM
(refer to Section 3 ‑ Conditions Affecting Operation—Propeller Selection for
additional information)
Idle RPM in neutral (engine at normal operating temperature)
Oil pressure at idle
Oil pressure at 4000 RPM
Thermostats (water)
Thermostats (oil)
Coolant temperature
Electrical system
Alternator rating
90-8M0089579
MARCH 2014
eng
Description
System Capacity
5.2 L (5.5 US qt)
Where Used
Closed-cooling system
NOTICE
Engine Oil
Fluid Type
5W‑30 Full Synthetic TDI Engine Oil
Section 4 - Specifications
92-877770K1
Part Number
92‑8M0069603
Specifications
In‑line 4‑cylinder diesel
Turbocharged and aftercooled 16‑valve
2.0L (122 cid)
1‑3‑4‑2
83 mm (3.27 in.)
92 mm (3.62 in.)
4000 RPM
700 RPM
2.4 bar (240 kPa [35 psi])
6.6 bar (660 kPa [95 psi])
83° C (181° F)
95° C (203° F)
80–85° C (176–185° F)
12‑volt negative (–) ground
14 V, 110 A
Part No.
Page 39
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