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RECOMMENDED FUEL, COOLANT, AND LUBRICANT
RECOMMENDED FUEL, COOLANT, AND LUBRICANT
Reservoir
Capacity
Liters
Specified
US gal
Liters
Refill
US gal
Reservoir
Capacity
Liters
Specified
US gal
Liters
Refill
US gal
NOTICE
Always use diesel oil for the fuel.
To ensure good fuel consumption characteristics and exhaust gas characteristics, the engine mounted on this machine uses an
electronically controlled high-pressure fuel injection device. This device requires high precision parts and lubrication, so if low
viscosity fuel with low lubricating ability is used, the durability may drop markedly.
Note 1: HTHS ( High-Temperature High-Shear Viscosity 150°C), specified by ASTM D4741 must be equal to or
higher than 3.5 mPa-S. Komatsu EOS0W30 and EOS5W40 are the most suitable oils.
Note 2: Powertrain oil has different properties from engine oil. Be sure to use the recommended oils.
Note 3: Hyper grease (G2-T, G2-TE) has a high performance.
When it is necessary to improve the lubricating ability of the grease in order to prevent squeaking of pins and
bushings, the use of G2-T or G2-TE is recommended.
Note 4: Supercoolant (AF-NAC)
1) Coolant has the important function of anticorrosion as well as antifreeze.
Even in the areas where freezing is not an issue, the use of antifreeze coolant is essential.
Komatsu machines are supplied with Komatsu Supercoolant AF-NAC. Komatsu Supercoolant AF-NAC has
excellent anticorrosion, antifreeze and cooling properties and can be used continuously for 2 years or 4000 hours.
Komatsu Supercoolant AF-NAC is strongly recommended wherever available.
2) For details of the ratio when diluting super coolant with water, see "CLEAN INSIDE OF COOLING SYSTEM
(PAGE 4-26)".
Supercoolant AF-NAC may be supplied in premix. In this case, always top off with premix solution. (never dilute
with water)
3) To maintain the anticorrosion properties of Supercoolant AF-NAC, always keep the density of Supercoolant
between 30% and 68%.
RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN
KOMATSU GENUINE OIL
When using commercially available oils other than Komatsu genuine oil, consult your Komatsu distributor.
4 - 12
Transmission
Engine oil
case
pan
(Incl. brake
oil tank)
44
165
11.62
43.59
37
77.5
9.78
20.48
Front final
Center
drive case
differential
(each)
case
4.5
25
1.19
6.61
4.0
24.5
1.06
6.47
https://www.besttruckmanuals.com/
Front
Hydraulic
suspension
tank
(each)
171
3
45.18
0.79
120
3
31.70
0.79
Center final
Rear
drive case
differential
(each)
case
4.0
25
1.06
6.61
3.5
25
0.92
6.61
MAINTENANCE
MAINTENANCE
Rear
Front
suspension
differential
(each)
2.2
0.58
3.70
2.2
0.58
3.70
Rear final
Cooling
drive case
Fuel tank
(each)
5.0
384
1.32
101.45
4.5
–
1.19
–
14
14
system
65
17.17
59
15.59
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