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there are a few kinds of BH that help cars start from extreme cold weather,
6 M. j& w- l! Abasically , BH keep the car warm by heating up the oil pan-which keeps the engine oil from frozen, or by heating up the coolant/radiator, and keep the engine block warm.
4 A; y" o1 T+ z0 E$ n' A! m! ~" _& g! EEither way, the engine shall not be frozen with use of BH.
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6 V5 Q! u0 y* [# W5 C r8 ]5 ?* W: |If you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
. y& d& X! n7 h( T$ Z( ?A good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees.7 d1 f2 i3 O8 w, i1 ^. w' J
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if you have BH or SO, but ur car still could not be started up, and you have not checked/replaced your battary before the winter came, I bet the battary is dead. |
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