Engine Specifications; 4.3 Mpi Ect - Mercury 4.3 MPI SeaCore Operation & Maintenance Manual

If Mercury/Quicksilver 25W‑40 Synthetic Blend Engine Oil is unavailable, use the following lubricants, listed in order of
recommendation.
1. Mercury/Quicksilver 25W‑40 Mineral NMMA FC‑W Catalyst Compatible.
IMPORTANT: If you are servicing a catalyst engine, use the following oils for short periods of time only.
2. Other recognized brands of NMMA FC‑W Catalyst Compatible rated 4‑cycle oil.
3. Other recognized brands of NMMA FC‑W rated 4‑cycle oils.
4. A good‑grade, straight‑weight detergent automotive oil according to the last row of the operating chart below.
NOTE: We do not recommend nondetergent oils, multi‑viscosity oils (other than as specified), non‑FC‑W rated synthetic oils,
low‑quality oils, or oils that contain solid additives.
Use the following information for selecting the type of oil according to the order of preference.

Engine Specifications

4.3 MPI ECT

NOTE: Performance specifications are obtained and corrected in accordance with SAE J1228/ISO 8665 Crankshaft Power.
All measurements are taken with the engine at normal operating temperature.
RPM range is measured using an accurate service tachometer with the engine at normal operating temperatures.
Oil pressure must be checked with the engine at normal operating temperature.
NOTE: Oil pressure specifications are for reference and may vary.
IMPORTANT: Do not mix spark plug types in an engine. All spark plugs should have the same part number.
Propeller shaft power
Displacement
Alternator amperage
RPM
Minimum oil pressure
90-8M0113859 DECEMBER 2015
eng
Mercury/Quicksilver 25W-40 Synthetic Blend, NMMA FC-W Catalyst Compatible rated 4-cycle oil
Mercury/Quicksilver 25W-40 Mineral NMMA FC-W Catalyst Compatible rated 4-cycle oil
Other recognized brands of NMMA FC-W Catalyst Compatible rated 4-cycle oil
Other recognized brands of NMMA FC-W rated 4-cycle oil
SAE 20W
0° C
(32° F)
AIR TEMPERATURE
Hot
Cold
WOT
Rev limiter
Idle in neutral
Idle in gear
At 2000 RPM
At idle
SAE30W
10° C
(50° F)
Section 3 - Specifications
SAE40W
53574
164 kW (220 hp)
134 kW (180 hp)
4.3 L (262 cid)
72 A
65 A
4400–4800
4950
625 (not adjustable)
650 (not adjustable)
124 kPa (18 psi)
41 kPa (6 psi)
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