EasyManuals Logo

Mercury 20 User Manual

Mercury 20
68 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #29 background imageLoading...
Page #29 background image
FUEL & OIL
23
Oil Recommendation
Recommended Oil Mercury or Quicksilver Premium 2‑Cycle TC‑W3 Outboard 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 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
GASOLINE/OIL MIXING RATIO CHART
Gas/Oil Ratio 3.8 liters (1 gal.) gas 11.5 liters (3 gal.) gas 23 liters (6 gal.) gas
25:1 (4%) 148 ml (5 fl. oz.) oil 473 ml (16 fl. oz.) oil 946 ml (32 fl. oz.) oil
50:1 (2%) 89 ml (3 fl. oz.) oil 237 ml (8 fl. oz.) oil 473 ml (16 fl. oz.) oil
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
!
WARNING
Avoid serious injury or death from a gasoline fire or explosion. 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.
Do not completely fill the fuel tanks. Leave approximately 10% of the tank volume unfilled. Fuel will expand in
volume as its temperature rises and can leak under pressure if the tank is completely filled.
FILLING FUEL TANKS PERMANENTLY INSTALLED
Slowly pour the correct amount of oil along with gasoline as the tank is being filled.
FILLING PORTABLE FUEL TANKS
Remove portable fuel tanks from boat to refill them.
Pour the full amount of oil along with approximately one gallon of gasoline into the fuel tank. Mix thoroughly,
then pour the remainder of gasoline into the tank.
PORTABLE FUEL TANK PLACEMENT IN THE BOAT
Place the fuel tank in the boat so the vent is higher than the fuel level under normal boat operating conditions.

Table of Contents

Other manuals for Mercury 20

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Mercury 20 and is the answer not in the manual?

Mercury 20 Specifications

General IconGeneral
ExhaustThrough Prop
StartingManual
SteeringTiller
Shaft Length15"
Horsepower20 HP

Related product manuals