你不覺得這文章前後矛盾嗎？

前麵：
In 0W-16 viscosity oil, the viscosity indicates that the oil flows quickly and easily like 0 weight oil in cold temperature, 
Whereas, in 0w-20, the oil also flows easily like 0 weight when it is cold outside. 
這兩句解釋了前麵的數字 0W 代表什麽意義，也說了這兩種油在冷天的流動性相同。

後麵卻是這樣說了：
0W-16 oil can flow easily at ambient temperatures as low as -40°C, whereas 0W-20 can also flow normally down to -30°C.
低溫下的流動性並不一樣，還是有區別的。

此0W非彼0W ？