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there are a few kinds of BH that help cars start from extreme cold weather,
1 n3 [8 ~3 x. {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.
0 `4 d- k0 s) d9 \! A2 O' L) v9 oEither way, the engine shall not be frozen with use of BH.
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: D$ ]: V8 J; FIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
$ f8 K- Z- w# mA good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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