TOHATSU MFS2.5B Owner's Manual page 45

Use NMMA FC-W certified 4-stroke out-
board oil below.
10W-30: is recommended for use in all
temperature.
10W−40
10W−30
-30 -20 -10 0 10
-22 -4 14 32 50
You can also use oils that carry the API rat-
ing of SF, SG, SH, SJ, SL, or SM. Select
the appropriate viscosity, based on atmo-
spheric temperature, from the chart below.
ENOW00090-0
CAUTION
Use of engine oils that do not meet these
requirements will result in reduced engine
life, and other engine problems.
ENOW00091-0
CAUTION
You may be injured due to high engine tem-
peratures if you fill engine oil just after
stopping. Changing engine oil should be
done after the engine has been cooled.
ENOW00210-0
CAUTION
 Do not overfill engine oil, or engine oil
could leak and/or engine could be dam-
aged. If engine oil level is over upper
limit marks of oil gauge, drain oil to level
lower than upper limit.
 Be sure that outboard motor is in upright
and level position when checking or
changing oil.
20 30 40 ˚C
68 86 96 ˚F
ENOF00208-0
INSPECTION AND MAINTENANCE
ENON00031-0
Notes
 If any amount of water is found in engine
oil, making it milky white, consult dealer.
 If engine oil is contaminated with fuel,
emitting strong fuel smell, consult dealer.
 Some oil dilution is normal if engine is
idled or trolled for long periods, espe-
cially in cooler water temperatures.
ENOM00237-0
Replacing gear oil
ENOW00094-0
WARNING
 Be sure that outboard motor is secured
to transom or service stand, or acciden-
tal drop or fall of outboard motor could
lead to severe personal injury.
 Be sure to lock outboard motor if it is
tilted up, or accidental fall of outboard
motor could lead to severe personal
injury.
 Do not go under outboard motor tilted
up and locked, or accidental fall of out-
board motor could lead to severe per-
sonal injury.
1. Remove the oil plugs (upper and
lower), and completely drain the gear
oil into a pan.
1. Oil plug (Upper)
2. Oil plug (Lower)
45
1
2
ENOF00246-0