MerCruiser 5.7 MPI User Manual

Section 4 - Specifications
Page 46 90-864197072 NOVEMBER 2007
NOTE: We do not recommend non‑detergent oils, multi‑viscosity oils (other than as
specified), non FC‑W–rated synthetic oils, low‑quality oils, or oils that contain solid
additives.
Mercury Full-Synthetic MerCruiser Engine Oil, 20W-40, NMMA FC-W rated
MerCruiser/Quicksilver 25W-40 Synthetic Blend, NMMA FC-W rated 4-cycle MerCruiser oil
Other recognized brands of NMMA FC-W rated oils
SAE 20W
SAE30W
SAE40W
AIR TEMPERATURE
ORDER OF PREFERENCE
(32° F)
0° C
(50° F)
10° C
32878
Mercury/Quicksilver 25W-40, NMMA FC-W rated 4-cycle MerCruiser oil
Engine Specifications
Models 5.7 MPI Horizon 5.7 6.2 MPI Horizon 6.2
Power 224 kW (300 hp) 239 kW (320 hp)
Displacement 5.7 L (350 cid) 6.2 L (377 cid)
Specified WOT RPM range 4600–5000 4800–5200
Idle RPM in neutral 600
Minimum oil pressure at idle 41 kPa (6 psi)
Thermostat (seawater cooled models) 71° C (160° F)
Thermostat (closed cooled models) 77° C (170° F)
Timing at idle Not adjustable
Firing order 1‑8‑4‑3‑6‑5‑7‑2
Electrical system 12 V negative (–) ground
Alternator rating 65 A
Minimum battery rating (DTS models) 750 CCA, 950 MCA, or 180 Ah
Minimum battery rating (non‑DTS models) 800 CCA, 1000 MCA, or 190 Ah
Spark plug yype AC Platinum (AC 41‑993)
Spark plug gap 1.5 mm (0.060 in.)
Fluid Specifications
Engine
IMPORTANT: All capacities are approximate fluid measures.
All Models
Capacity Fluid Type
Engine oil (with filter) 4.25 L (4.5 US qt) Mercury MerCruiser Full‑Synthetic Engine Oil, 20W‑40
Seawater cooling system 20 L (21 US qt) Propylene glycol and purified water

MerCruiser 5.7 MPI Specifications

General

Engine Type	V8
Fuel System	Multi-Port Fuel Injection (MPI)
Horsepower	300 HP
Ignition	Electronic
Cylinders	8
Fuel Type	Gasoline
Alternator	65 amp
Compression Ratio	9.4:1
Fuel Requirement	87 octane (minimum)
Displacement	5.7L (350 cu in)
Max RPM	5000 RPM