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Mercury MERCRUISER - Engine Oil; Engine Specifications

Mercury MERCRUISER
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Section 4 - Specifications
90-899883295 JUNE 2008 Page 73
IMPORTANT: When operating a Mercury MerCruiser engine on gasoline containing
alcohol, do not store the gasoline in the fuel tank for long periods. Whereas 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. In addition, internal
corrosion may take place during storage if alcohol has washed protective oil films from
internal components.
Engine Oil
To help obtain optimum engine performance and to provide maximum protection, we
recommend using the following oil:
Application Recommended Oil
All MerCruiser engines Mercury MerCruiser Full‑Synthetic Engine Oil, 20W‑40, NMMA FC‑W rated
If the Mercury MerCruiser Full‑Synthetic, 20W‑40 oil is unavailable, you can use the
following lubricants, listed in order of recommendation:
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 per the operating chart below.
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
NOTE: Performance ratings are obtained and corrected in accordance with SAE J1228/
ISO 8665 Crankshaft Power.
NOTE: All measurements are taken with the engine at normal operating temperature.

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