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there are a few kinds of BH that help cars start from extreme cold weather,
3 O9 _8 R1 Q, \3 U. F" o# Dbasically , 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.. f2 f. j1 g N& f- C7 a3 Y1 E9 ?
Either way, the engine shall not be frozen with use of BH.
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2 K$ w# m! F, I1 L; E8 p9 lIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
. m/ Q0 `+ O- r/ ~A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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