Mixing Fuel And Oil; Filling Fuel Tank - Mercury 25 Series Owner's Manual

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 25:1 (4%) gasoline/oil mixture in the first tank of fuel.
After the break‑in fuel mixture is used up, use a 50:1 (2%) gasoline/
oil mixture. Refer to the table (following) for mixing ratios.
GASOLINE/OIL MIXING RATIO CHART
Gas/Oil
3.8 liters (1 gal.) gas 11.5 liters (3 gal.) gas 23 liters (6 gal.) gas
Ratio
148 ml (5 fl. oz.) oil
25:1 (4%)
89 ml (3 fl. oz.) oil
50:1 (2%)
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.

Filling Fuel Tank

Avoid serious injury or death from a gasoline fire or explosion.
Use caution when filling fuel tanks. Always stop the engine and
do not smoke or allow open flames or sparks in the area while
filling fuel tanks.
Fill fuel tanks outdoors away from heat, sparks, and open flames.
Always stop engine before refilling tanks.
FUEL & OIL
GASOLINE/OIL MIXING RATIO CHART
WARNING
!
473 ml (16 fl. oz.) oil 946 ml (32 fl. oz.) oil
237 ml (8 fl. oz.) oil 473 ml (16 fl. oz.) oil
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