 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,5 O2 T3 L, h& U2 R) D) R4 q
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.
7 j2 B' a/ t$ e( h" W7 OEither way, the engine shall not be frozen with use of BH." x1 J4 A2 n$ s8 q: j3 ?) ]
! n5 \$ @9 ~; t
If you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
o8 x4 _! j Q, zA good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|