Fuel Requirements; Gasoline - Yamaha F350 Owner's Manual

Recommended engine oil grade 1
SAE
-4 14 32 50
-20 -10 0 10
10W–30
10W–40
5W–30
Recommended engine oil grade 2
SAE
-4 14 32 50
-20 -10 0 10
15W–40
EMU36360

Fuel requirements

EMU41331

Gasoline

Use a good quality gasoline that meets the
minimum octane requirement. If knocking or
pinging occurs, use a different brand of gas-
oline or premium unleaded fuel. Yamaha
recommends that you use alcohol-free gaso-
line (see Gasoline with Ethanol) whenever
possible.
The use of a poor quality gasoline may result
in starting and running problems. If you en-
counter drivability problems, which you sus-
pect could be related to the fuel you are
using, we recommend that you switch to a
recognized high quality brand of gasoline,
such as a gasoline that is advertised as Top
Tier Detergent Gasoline. Failure to comply
with these recommendations may also result
Specifications and requirements
API
68 86 104 122˚F
20 30 40 50˚C
SG
SH
ZMU06854
API
68 86 104 122˚F
20 30 40 50˚C
SH
20W–40
20W–50
ZMU06855
in unscheduled maintenance, fuel system
damage, and internal engine damage.
Recommended fuel:
Premium unleaded gasoline
SE
Min. pump octane number (PON):
SF
89
SJ
SL
ECM01981
NOTICE
Do not use leaded gasoline. Leaded

gasoline can seriously damage the en-
gine.
Avoid getting water and contaminants

in the fuel tank. Contaminated fuel can
cause poor performance or engine
damage. Use only fresh gasoline that
has been stored in clean containers.
SJ
SL
Gasoline with Ethanol
Two types of gasoline are commonly avail-
able in the U.S.A. and Canada for use in au-
tomobiles and boats: conventional gasoline
without Ethanol and gasoline with Ethanol,
which is typically referred to as E10 gasoline.
According to federal regulations, E10 gaso-
line may contain up to 10% Ethanol.
A high quality gasoline without Ethanol is the
preferred fuel for your Yamaha outboard mo-
tor. However, if gasoline with Ethanol is the
only fuel available in your area, your Yamaha
outboard motor is calibrated to run properly
on fresh E10 gasoline that meets the mini-
mum octane requirement specified for this
model.
ECM02401
NOTICE
Never use a gasoline for your outboard
motor that contains more than 10% Etha-
nol, such as E15 which contains 15% Eth-
anol or E85 which contains 85% Ethanol,
or gasoline containing any amount of
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