Operation & Maintenance Manual for WP7 Euro Ⅵ Vehicle Diesel Engine Table 1-1 Selection of oil grade Ambient t Multi- 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. 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) 2 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