 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,: `5 B: Z( V+ q M7 p' _
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.
( \4 w+ I: _1 ?7 h* }& i& f9 cEither way, the engine shall not be frozen with use of BH./ o( Z O* V( {: `! g1 L" I; H& O$ a
, G/ X2 |" M( e7 `: U. s
If you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.6 r" R9 P- H1 Y4 ]" Q
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|