Section 4 - Specifications
Page 54 90-8M0074347 eng OCTOBER 2012
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
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 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
Fluid Specifications
Sterndrives
NOTE: Oil capacity includes the drive lube monitor.
Model
Capacity Fluid Type
Alpha One 1892 mL (64 oz) High Performance Gear Lubricant
Engine
IMPORTANT: All capacities are approximate fluid measures.
3.0 TKS
Capacity Fluid Type
Engine oil (with filter) 3.8 L (4 US qt) Mercury Full‑Synthetic MerCruiser 20W‑40, NMMA FC‑W rated oil.
Seawater cooling system 9 L (8.5 US qt) Propylene glycol and purified water
Closed cooling system 9 L (8.5 US qt)
Mercury Extended Life Coolant Antifreeze or extended life ethylene glycol 5/100
antifreeze mixed 50/50 with purified water
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