 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,' p$ W4 W0 ]( Y% a9 d2 f
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.
+ \1 Y* P4 x$ I4 KEither way, the engine shall not be frozen with use of BH., Q( {# h4 u# s- ]/ I
% Q) E9 Z: y* G6 xIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.$ y. Y: T$ d0 e+ Z( u }5 B+ r N
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|