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IDENTIFICATION
NUMBER LOCATION
The model and identification numbers of your
outboard motor are stamped on a plate
attached to the clamp bracket. It is important to
know these numbers when you place a parts
order or if your motor is stolen.
FUEL AND OIL
GASOLINE
DF300B/325A
Suzuki highly recommends that you use alco-
hol-free unleaded gasoline whenever possible,
with a minimum octane rating of 91 (Research
method). However, blends of unleaded gasoline
and alcohol with equivalent octane content may
be used, provided the guidelines that follow are
met.
DF350A
Suzuki highly recommends that you use alco-
hol-free unleaded gasoline whenever possible.
Premium gasoline is recommended, not
required. Minimum octane rating of 94
(Research method) is acceptable. However,
blends of unleaded gasoline and alcohol with
equivalent octane content may be used, pro-
vided the guidelines that follow are met.
NOTE:
Oxygenated fuels are fuels which contain oxy-
gen-carrying additives such as alcohol.
Suzuki recommends that you install a water-
separating fuel filter assembly between your
boat’s fuel tank(s) and outboard motor(s). Fuel
filtration systems of this type will help prevent
water that may be present in your boat’s fuel
tank(s) from contaminating your motor’s elec-
tronic fuel injection system. Water contamina-
tion can cause poor engine performance and
can also cause damage to the electronic fuel
injection system components.
Your Authorized Suzuki Marine Dealer can pro-
vide you advice about water-separating fuel fil-
ter systems and installation.
Gasoline/Ethanol Blends
Blends of unleaded gasoline and ethanol (grain
alcohol), also known as “GASOHOL”, are com-
mercially available in some areas. Blends of this
type may be used in your outboard motor if they
are no more than 10% ethanol. Make sure this
gasoline-ethanol blend has octane ratings no
lower than those recommended for gasoline.
Use the recommended gasoline which
conforms to the following labels.
78RB0900*
NOTICE
Use of leaded gasoline can cause engine dam-
age. Use of improper or poor quality fuel can
affect performance and may damage your
motor and fuel system.
Use only unleaded gasoline. Do not use fuel
having lower than the recommended octane,
or fuel that may be stale or contaminated by
dirt/water etc.
or