BEFORE YOU OPERATE
44
Note:
• Be sure the engine oil, engine oil storage
containers, and engine oil filling equipment are
free of sediments and water.
• Change the engine oil after the first 50 hours of
operation and then at every 250 hours thereafter.
• Select the oil viscosity based on the ambient
temperature where the engine is being operated.
See the SAE Service Grade Viscosity Chart
(Figure 3).
• Isuzu does not recommend the use of engine oil
“additives.”
■
Additional technical engine oil
requirements:
The engine oil must be changed when the Total
Base Number (TBN) has been reduced to 1.0
mgKOH/g. TBN (mgKOH/g) test method; JIS
K-201-5.2-2 (HCI), ASTM D4739 (HCI).
Engine Oil Viscosity
Select the appropriate engine oil viscosity based on
the ambient temperature and use the SAE service
grade viscosity chart in Figure 3.
Figure 3
Checking Engine Oil
1. Make sure engine is level.
2. Remove dipstick (Figure 4, (1)) and wipe with
clean cloth.
3. Fully reinsert dipstick.
4. Remove dipstick. The oil level should be
between upper (Figure 4, (2)) and lower
(Figure 4, (3)) lines on the dipstick.
5. Fully reinsert dipstick.
Adding Engine Oil
1. Make sure engine is level.
2. Remove oil cap (Figure 4, (4)).
3. Add indicated amount of engine oil at the top or
side engine oil filler port (Figure 4, (5)).
4. Wait three minutes and check oil level.
5. Add more oil if necessary.
6. Reinstall oil cap (Figure 4, (4)) and
hand-tighten. Over-tightening may damage the
cap.
-30°C -20°C -10°C
0
10°C
20°C
30°C
SAE 5W-30
SAE 15W-40
SAE 20
SAE 30
SAE 10W-30
K0000005A05
40°C
4
5
1
2
3
K0000587AX
4
TNV_OperationManual_T4(under 19kW).book Page 44 Wednesday, June 17, 2015 11:23 AM
