Engine Oil Viscosity; Checking The Engine Oil; Adding Engine Oil - Yanmar 3JH4E Operation Manual

Engine Oil Viscosity

SAE 10W
SAE 20W
SAE 10W-30
SAE 15W-40
SAE 20
-4°F 14°F 32°F 50°F
(-20°C) (-10°C) (0°C) (10°C) (20°C) (30°C) (40°C)
Figure 8
Select the appropriate engine oil viscosity
based on the ambient temperature shown in
the SAE Service Grade Viscosity Chart in
Figure 8.
SAE 10W30 or SAE15W40 are the
recommended oil viscosities.
If you operate your equipment at
temperatures outside the limits shown,
consult your authorized Yanmar dealer or
distributor for special lubricants or starting
aids.
JH4 Series Operation Manual
SAE 30
SAE 40
68°F 86°F 104°F
0000005
BEFORE YOU OPERATE

Checking the Engine Oil

Figure 9
Note: 4JH4-TE shown. Other models are
similar.
1. It is recommended that the engine be
as level as possible before checking the
oil.
2. Remove dipstick (Figure 9, (3)) and
wipe with clean cloth.
3. Fully reinsert dipstick.
4. Remove dipstick. The oil level should
be between upper (Figure 9, (4)) and
lower (Figure 9, (5)) lines on the
dipstick.
5. Add oil if necessary. See Adding
Engine Oil on page 33.
6. Fully reinsert dipstick.

Adding Engine Oil

1. NOTICE: Prevent dirt and debris from
contaminating engine oil. Carefully
clean the dipstick and the surrounding
area before you remove the cap.
Remove the yellow oil filler port cap
from filler port (Figure 9, (1)) and fill
with engine oil.
2. Fill with oil to the upper limit
(Figure 9, (4)) on the dipstick
(Figure 9, (3)). NOTICE: NEVER
overfill the engine with engine oil.
(1)
(2)
(3)
(4)
(5)
0004490
33