Suzuki DF25A 2014 Owner's Manual page 60

ENGINE OIL
 WARNING
Never perform any ENGINE OIL procedure
with the motor running, as serious injury can
occur.
The motor must be shut off before any
ENGINE OIL procedures are performed.
NOTICE
Extended trolling can reduce oil life. Your
engine may be damaged if you do not change
engine oil more frequently under this type of
use.
Change your engine oil more frequently if
your engine is used for extended trolling.
Engine oil change
The oil should be changed when engine is
warm so that the oil will drain thoroughly from
the engine.
To change the engine oil:
1. Place the motor in a vertical position and
remove the motor cover.
2. Remove the oil filler cap 1.
3. Place a drain pan under the engine oil drain
plug.
 CAUTION
The engine oil temperature may be high
enough to burn your fingers when the drain
plug is loosened.
Wait until the drain plug is cool enough to
touch with bare hands before removing it.
4. Remove the engine oil drain screw 2 and
gasket 3, then let the engine oil drain.
5. After draining, secure the engine oil drain
plug with a new gasket.
NOTICE
A previously-used gasket may leak, resulting
in engine damage.
Do not re-use gaskets. Be sure to always use
new gaskets.
6. Fill with recommended engine oil to the
upper level.
Oil capacity: 1.5 L
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