单项选择题
A.resist changes in viscosity with changes in temperature
B.resist emulsification
C.neutralize acids
D.resist oxidation at high temperatures
单项选择题 One characteristic of a lubricating oil adversely affecting the result of centrifuging is （）
单项选择题 If a used lube oil analysis indicates an excessive chromate content, this means （）
单项选择题 When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?（） Ⅰ.filtering Ⅱ.settling