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there are a few kinds of BH that help cars start from extreme cold weather,
5 y; [5 I- N' k$ gbasically , 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.
5 A5 x! j9 ^2 `) ]Either way, the engine shall not be frozen with use of BH.
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8 @7 A, w0 A0 \9 W# T/ X1 ^4 PIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.* F4 Y" c0 g& y) E
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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