FUEL AND LUBRICANT SPECIFICATIONS SECTION 8
DD-29/31HF/38HF Vibratory Asphalt Compactors 8-9
Under normal operating conditions, the following consistency grades are recommended:
Table 8-7: Consistancy Grades
Synthetic Component Lubricant
This gear lubricant provides better thermal and oxidation stability than conventional mineral
oils. The lubricant has naturally high viscosity indexes compared to mineral oils, providing
lower viscosity at lower temperatures and higher viscosity at higher temperatures (Table 8-7).
Table 8-8
AMBIENT TEMPERATURE °F (°C) CONSISTANCY GRADE
Below 0° F (Below -18° C) NLGI No. 0
0 to 100° F (-18 to 38° C) NLGI No. 1 or No. 2
Over 100° F (Over 38° C) NLGI No. 2 or No. 3
PROPERTY SPECIFICATION
ISO Viscosity Grade 220
API Gravity 31.4
Viscosity Index 152
Viscosity:
cSt at 40° C 217
cSt at 100° C 25.9
SUS at 100° F 1122
SUS at 210° F 127
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