Operation & Maintenance Manual for WP7 Euro
Ⅵ
Vehicle Diesel Engine
2
Table 1-1 Selection of oil grade
Due to the flat viscosity curve, the multi-grade oil has excellent lubricating
characteristics at lower and higher temperatures.
1.3 Antifreeze
1.3.1 The cooling system should be filled with long-lasting antifreeze fro rust-
proofing and antifreezing.
1.3.2 For the long-lasting antifreeze formulation, please refer to the instruction of
antifreeze. Some domestic long-lasting antifreezes are shown in Table 1-2.
Table 1-2 Domestic long-lasting antifreeze.
Item
Grade
JFL-318
JFL-336
JFL-345
Glycol content %
33
50
56
Specific gravity
(15.6℃)
1.05
1.074
1.082
Boiling point ℃
104.5±1
108.5±1
110.0±1
Freezing point ℃
-18±1
-36±1
-45±1
Applicable lowest
temperature ℃
-10
-26
-35
1.4 Urea Solution
Product Properties for urea solution as per the revised ISO22241 standard. See Table
1-3 for details.
Table 1-3 Requirements on Urea solution (Refer to ISO22241)
Ambient
tempera
ture
Multi-
grade oil
