Oil Recommendation - Mercury 4 TwoStroke Operation, Maintenance And Installation Manual

Fuel leakage is a fire or explosion hazard, which can cause serious injury or
death. Periodically inspect all fuel system components for leaks, softening,
hardening, swelling, or corrosion, particularly after storage. Any sign of
leakage or deterioration requires replacement before further engine
operation.
IMPORTANT: If you use gasoline that contains or might contain methanol or
ethanol, you must increase the frequency of inspection for leaks and
abnormalities.
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.

Oil Recommendation

Recommended Oil
IMPORTANT: Oil must be NMMA certified TC‑W3 2‑Cycle oil.
Mercury or Quicksilver Premium TC‑W3 2‑Cycle oil is recommended for this
engine. For added protection and lubrication, Mercury or Quicksilver Premium
Plus TC‑W3 2‑Cycle oil is recommended. If Mercury or Quicksilver outboard oil
is not available, substitute another brand of 2‑cycle outboard oil that is NMMA
Certified TC‑W3. Severe engine damage may result from use of an inferior oil.
Mixing Fuel and Oil
Use a 1:25 oil/gasoline mixture in the first tank of fuel.
After the break‑in fuel mixture is used up, use a 1:50 oil/gasoline mixture. Refer
to the table (following) for mixing ratios.
GASOLINE/OIL MIXING RATIO CHART
Oil/Gas Ratio 3.8 liters (1 gal) gas 11.5 liters (3 gal) gas 23 liters (6 gal) gas
1:25
1:50
MIXING PROCEDURE
Pour the full amount of oil along with approximately one gallon of gasoline into
an approved container. Shake the two together until they are thoroughly mixed.
Add the remainder of gasoline and shake container to ensure mixing.
FUEL AND OIL
!
Mercury or Quicksilver Premium 2‑Cycle TC‑W3
Outboard Oil
OIL/GASOLINE MIXING RATIO CHART
148 ml (5 fl oz) oil
89 ml (3 fl oz) oil
WARNING
473 ml (16 fl oz) oil
237 ml (8 fl oz) oil
22
946 ml (32 fl oz) oil
473 ml (16 fl oz) oil
eng