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there are a few kinds of BH that help cars start from extreme cold weather,
" K& y' K' o N) ybasically , 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.
& B. x6 K# b# B. }" XEither way, the engine shall not be frozen with use of BH.
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$ ~% e( e$ Q ~" z' v T; YIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.0 N6 r& ?! C. X0 Q( P
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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