Engine Oil; Gear Oil - Suzuki DF250AP Owner's Manual

• If engine pinging is experienced, substitute
another brand, as there are differences
between brands.
• Unleaded gasoline will extend spark plug life.
 WARNING
Gasoline is extremely flammable and
toxic. It can cause a fire and can be haz-
ardous to people and pets.
Always take the following precautions
when refueling:
• Never permit anyone other than an
adult to refill the fuel tank.
• If you use a portable fuel tank, always
stop the motor and remove the fuel
tank from the boat to refill it.
• Do not fill the fuel tank all the way to
the top or fuel may overflow when it
expands due to heating by the sun.
• Be careful not to spill fuel. If you do,
wipe it up immediately.
• Do not smoke, and keep away from
open flames and sparks.
NOTICE
Gasoline kept in the fuel tank for long
periods of time will produce varnish and
gum, which can damage the engine.
Always use fresh gasoline.
NOTICE
Fuels containing alcohol can cause paint
damage, which is not covered under the
New Outboard Motor Limited Warranty.
Be careful not to spill fuel containing
alcohol while refueling. If fuel is spilled,
wipe it up immediately.

ENGINE OIL

NOTICE
Use of poor quality engine oil can
adversely affect engine performance and
life.
Suzuki recommends that you use Suzuki
Marine 4-Cycle Engine Oil or its equiva-
lent.
Oil quality is a major contributor to your
engine's performance and life. Always select
good quality engine oil.
Suzuki recommends the use of SAE 10W-40
SUZUKI MARINE 4-CYCLE ENGINE OIL. If
SUZUKI MARINE 4-CYCLE ENGINE OIL is not
available, select a NMMA certified FC-W oil or
good quality 4-cycle motor oil from the following
chart according to the average temperatures in
your area.
API Classification
SG
SH
SJ
SL
SM
˚C –20
TEMP.
˚F –4
NOTE:
In very cold weather (below 5°C (41°F), use
SAE (or NMMA FC-W) 5W-30 for easier start-
ing and smooth operation.

GEAR OIL

Suzuki recommends the use of SUZUKI
HYPOID GEAR OIL. If it is not available, use
SAE 90 hypoid gear oil which is rated GL-5
under the API classification system.
SAE Viscosity Grade
10W–40
10W–30
–10 0 10 20 30 40
14 32 50 68 86 104
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