 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,) H- ~' s* z, R, n- T2 V$ 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.
- ^: q) G( I* z( dEither way, the engine shall not be frozen with use of BH.: g; y6 v. ^3 f
2 B2 s1 t) x9 i, J5 w8 M: W
If you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.+ e6 X+ z% [8 X$ o1 I9 t
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|