 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,
# O& Z+ s' A; f0 abasically , BH keep the car warm by heating up the oil pan-which keeps the engine oil from frozen, or by heating up the coolant, and keep the engine block warm.5 z7 s* e, C- t$ U0 L, J
Either way, the engine shall not be frozen with use of BH.
+ f5 y5 n0 S+ J. I# _. A
) {2 {0 h: F9 }! |/ VIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.9 W D) l3 b3 T1 q% h; L
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|