 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,4 y2 v) \+ l( k1 S
basically , 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 ]( W& k4 U' u/ l) U) L0 k1 x
Either way, the engine shall not be frozen with use of BH.( G; I5 k; @. y$ J3 a* w7 N j
o! s0 S" M7 A: Y+ J/ u) K2 oIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
9 U1 F. q4 e$ P. FA good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|