Komatsu PC300LC-8 Shop Manual page 42

GENERAL
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 bush-
ings, 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, 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%.
01-10
FUEL, COOLANT, AND LUBRICANTS
PC300LC/HD-8