HYOSUNG GT650 - PARTS CATALOGUE, Owner'S Manual

Page: 18 / 102

17
F U E L
ENGINE OIL
⊙ ⊙
ENGINE OIL SPECIFICATION
Use unleaded gasoline with an octane
rating of 91 or higher.
Unleaded gasoline can extend spark plug
life and exhaust components life.
※
If a SAE 10W/40 motor oil is not avail-
able, select alternative according to the
following chart.
FUEL, ENGINE OIL AND
COOLANT RECOMMENDATION
● ●
When refueling, always shut the
engine off and turn the ignition key
to the “OFF” position.
Never refuel near the flames, sparks
and heat sources.
● ●
Do not overfill the fuel tank.
Do not fill the fuel tank above the
entrance lower end.
WARNING
Spilling gasoline can damage the paint-
ed surfaces.
Be careful not to spill any fuel when fill-
ing the fuel tank.
Wipe spilled gasoline up immediately.
CAUTION
● ●
Don’t mix the unrecommended oil.
It could damage the engine.
● ●
When refilling the oil, don’t allow the
dust to get inside.
● ●
Wipe the spilled oil up immediately.
● ●
Don’t put the patch on the filler cap.
It could disturb the oil to be provided
and damage the engine.
WARNING
N O T E
In very cold weather [below -15
℃ ℃
(5
˚ ˚
F)], use SAE 5W/30 for good starting
and smooth operation.
Using a premium quality four stroke motor
oil will increase the service life of your
motorcycle.
Use the chart to select a viscosity rating
based on temperature range in your area.
Classification
system
API
SAE
Grade
Over SL
10W/40
Remarks
ENGINE OIL
Temperature
℃
℉
-30
-22
-20
-4
-10
14
0
32
10
50
20
68
30
86
40
104
20W50
15W40 15W50
10W40 10W50
10W30
5W30