Section 4 - Specifications
90-8M0061999
eng
MAY 2012
Page 45
IMPORTANT: When operating a Mercury MerCruiser engine on gasoline containing alcohol, do not store the gasoline in the
fuel tank for long periods. Cars normally consume alcohol‑blend fuels before they can absorb enough moisture to cause
trouble, boats often sit idle long enough for phase separation to take place. Internal corrosion may take place during storage if
alcohol has washed protective oil films from internal components.
Engine Oil
For optimum engine performance and maximum protection, use the following oil:
Application
Recommended Oil
All MerCruiser engines
Mercury MerCruiser Full‑Synthetic Engine Oil, 20W‑40, NMMA FC‑W rated
IMPORTANT: Lubrication requirements for catalyzed engines differ from the requirements for noncatalyzed engines. Some
marine‑grade lubricants contain high levels of phosphorus, which can damage the catalyst system on MerCruiser engines.
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 MerCruiser Full‑Synthetic Engine Oil, 20W‑40 oil is unavailable, use the following lubricants, listed in order of
recommendation. If you are servicing a catalyst engine, use these for short periods of time only.
1. Mercury/Quicksilver 25W‑40 Synthetic Blend, NMMA FC‑W–rated 4‑cycle MerCruiser oil
2. Mercury/Quicksilver 25W‑40, NMMA FC‑W–rated 4‑cycle MerCruiser 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.
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
Horizon 8.2 ECT and 8.2 H.O. 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.