Section 3 - Specifications
90-8M0113924 eng DECEMBER 2015 Page 41
8.2 MAG 8.2 MAG H.O.
Propshaft power
283 kW (380 hp) 320 kW (430 hp)
Displacement
8.2L (502 cid)
Alternator amperage
Hot 72 A
Cold 65 A
RPM
WOT 4600–5000
Rev limiter 5150 5150
Idle RPM
Mechanical
650
DTS
Minimum oil pressure
At 2000 RPM 207 kPa (30 psi)
At idle 103 kPa (15 psi)
Thermostat
76 °C (170 °F)
Timing at idle
Not adjustable
Firing order
1‑8‑4‑3‑6‑5‑7‑2
Minimum battery rating
Non‑DTS models 750 CCA, 950 MCA, 180 Ah
DTS models 800 CCA, 1000 MCA, 190 Ah
Spark plug type
NGK BPR6ES
Spark plug gap
0.83 mm (0.033 in.)
Engine Oil
For optimum engine performance and maximum protection, use the following oil:
Application
Recommended Oil
All MerCruiser engines Mercury/Quicksilver 25W‑40 Synthetic Blend Engine Oil, NMMA FC‑W Catalyst Compatible rated
IMPORTANT: Lubrication requirements for catalyzed engines differ from the requirements for noncatalyzed engines. Some
marine‑grade lubricants contain high levels of phosphorus. Although these high‑phosphorus lubricants may allow acceptable
engine performance, exposure over time will damage the catalyst. Catalysts damaged by lubricants containing high levels of
phosphorus may not be covered by the MerCruiser Limited Warranty.
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.
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