Engine Oil Requirements; Fuel Requirements; Gasoline; Muddy Or Acidic Water - Yamaha F20B Owner's Manual

EMU37474

Engine oil requirements

Recommended engine oil:
4-stroke motor oil with a combination
of the following SAE and API oil classi-
fications
Engine oil type SAE:
10W-30 or 10W-40
Engine oil grade API:
SE, SF, SG, SH, SJ, SL
Total engine oil quantity (oil pan capaci-
ty):
Without oil filter replacement:
1.6 L (1.69 US qt, 1.41 Imp.qt)
With oil filter replacement:
1.8 L (1.90 US qt, 1.58 Imp.qt)
If the recommended engine oil grades are
not available, select an alternative from the
following chart according to the average
temperatures in your area.
EMU36360

Fuel requirements

EMU36771

Gasoline

Use a good quality gasoline that meets the
Specifications and requirements
minimum octane rating. If knocking or ping-
ing occurs, use a different brand of gasoline
or premium unleaded fuel. Yamaha re-
comends that you use alcohol-free (see
Gasohol) gasoline whenever possible.
ECM01981
NOTICE
G
G
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. All etha-
nol blends containing more than 10% etha-
nol can cause fuel system damage or cause
engine starting and running problems.
Yamaha does not recommend gasohol con-
taining methanol because it can cause fuel
system damage or engine performance
problems.
EMU36880
Yamaha strongly recommends that you have
your dealer install the optional chromium-
plated water pump kit if you use the outboard
motor in muddy or acidic water conditions.
However, depending on the model it might
not be required.
Recommended gasoline:
Regular unleaded gasoline
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.

Muddy or acidic water

13