6.1
Section 6
Lubrication System
6
Section 6
Lubrication System
Oil Recommendations
Using the proper type and weight of oil in the
crankcase is extremely important. So is checking oil
daily and changing oil regularly. Failure to use the
correct oil, or using dirty oil, causes premature engine
wear and failure.
Oil Type
Use high-quality detergent oil of API (American
Petroleum Institute) service class SJ or higher. Select
the viscosity based on the air temperature at the time
of operation. See Figure 6-1.
10W-30
RECOMMENDED SAE VISCOSITY GRADES
10W-30, SAE 30
°F
-20
0
20
32
40 60
80
100
°C
-30 -20
-10 0
10 20 30
40
TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHANGE
NOTE: Using oil other than service class SJ or higher,
or extending oil change intervals longer than
recommended can cause engine damage.
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service class and SAE viscosity grade. See Figure 6-2.
10W-30
A
P
I
S
E
R
V
I
C
E
S
J
Figure 6-2. Oil Container Logo.
Check Oil Level
The importance of checking and maintaining proper
oil level in the crankcase cannot be overemphasized.
Check oil BEFORE EACH USE as follows:
1. Make sure the engine is stopped, level, and cool
so the oil has had time to drain into the sump.
ȱ Řǯȱ ȱȱȱȱȱȱęȱȦȱȱ
keep dirt and grass clippings out of the engine.
ȱ řǯȱ ȱȱȱȱȱęȱȦDzȱ
ȱěȱǯȱȱȱȱȱȱȱ
ȱȱȱȱęȱȱȱȱǯȱȱȱ
screw the cap into the tube. See Figure 6-3.
Figure 6-3. Oil Fill Cap/Dipstick.
ȱ Śǯȱ ȱȱȱȱȱȱȱȱ
level. Oil should be up to, but not over the "F" or
FULL mark on the dipstick. See Figure 6-4.
ȱ śǯȱ ȱȱȱȱǰȱȱȱȱ¢ȱȱȱȱȱ
the FULL mark on the dipstick. Always check the
level with the dipstick before adding more oil.
ȱ Ŝǯȱ ȱȱȱęȱȦȱȱȱ
securely.
Figure 6-1. Viscosity Grades Table.
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