 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,
' {) C1 K8 ~# Z# |* c9 obasically , 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.
7 V: W# }# O6 r4 I1 NEither way, the engine shall not be frozen with use of BH.. ?: X9 f$ r4 Z7 Z: _# `
7 s. `& @- T/ }9 t S% IIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
# E0 D r7 k+ q1 S! ~A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|