Specifications and requirements
13
If oil grades listed under Recommended en-
gine oil grade 1 are not available, select an al-
ternative oil grade listed under
Recommended engine oil grade 2.
Recommended engine oil grade 1
Recommended engine oil grade 2
EMU36360
Fuel requirements
EMU36803
Gasoline
Use a good quality gasoline that meets the
minimum octane rating. If knocking or pinging
occurs, use a different brand of gasoline or
premium unleaded fuel.
NOTICE
ECM01981
●
Do not use leaded gasoline. Leaded gas-
oline can seriously damage the engine.
●
Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can
cause poor performance or engine dam-
age. Use only fresh gasoline that has
been stored in clean containers.
Gasohol
There are two types of gasohol: gasohol con-
taining ethanol (E10) and that containing
methanol. Ethanol can be used if the ethanol
content does not exceed 10% and the fuel
meets the minimum octane ratings. E85 is a
fuel containing 85% ethanol and must not be
used in your outboard motor. All ethanol
blends containing more than 10% ethanol can
cause fuel system damage or cause engine
starting and running problems. Yamaha does
not recommend gasohol containing methanol
because it can cause fuel system damage or
engine performance problems.
It is recommended that you install a water-
separating marine fuel filter assembly (10 mi-
cron minimum) between your boat’s fuel tank
and outboard motor when using ethanol. Eth-
anol is known to allow moisture to be ab-
sorbed into boat fuel tanks and systems.
Recommended engine oil:
4-stroke outboard motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SE/SF/SG/SH/SJ/SL
Recommended engine oil grade 2:
SAE 15W-40/20W-40/20W-50
API SH/SJ/SL
Engine oil quantity (without oil filter re-
placement):
3.5 L (3.70 US qt, 3.08 Imp.qt)
Engine oil quantity (with oil filter re-
placement):
3.7 L (3.91 US qt, 3.26 Imp.qt)
ZMU06854
122˚F
50˚C
104
40
86
30
68
SAE
API
SE
SF
SG
SH
SJ
SL
20
50
10
32
0
14
-10
-4
-20
10W–30
10W–40
5W–30
ZMU06855
122˚F
50˚C
104
40
86
30
68
SAE
API
SH
SJ
SL
20
50
10
32
0
14
-10
-4
-20
15W–40
20W–40
20W–50
Recommended gasoline:
Regular unleaded gasoline with a
minimum octane rating of 90 (Re-
search Octane Number).
U6D779E0.book Page 13 Tuesday, November 15, 2011 2:33 PM