Section 3 - Specifications
90-8M0113925 eng DECEMBER 2015 Page 31
IMPORTANT: When operating a Mercury Marine engine on gasoline containing methanol or ethanol, do not store the gasoline
in the fuel tank for long periods. Cars normally consume these blended 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 occur 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/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.
Use the following information for selecting the type of oil according to the order of preference.
Mercury/Quicksilver 25W-40 Synthetic Blend, NMMA FC-W Catalyst Compatible rated 4-cycle oil
Other recognized brands of NMMA FC-W Catalyst Compatible rated 4-cycle oil
SAE 20W
SAE30W
SAE40W
AIR TEMPERATURE
ORDER OF PREFERENCE
(32° F)
0° C
(50° F)
10° C
Mercury/Quicksilver 25W-40 Mineral NMMA FC-W Catalyst Compatible rated 4-cycle oil
53574
Other recognized brands of NMMA FC-W rated 4-cycle 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 was measured using an accurate service tachometer with the engine at normal operating temperatures.
NOTE: Oil pressure specifications are for reference and may vary.
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