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there are a few kinds of BH that help cars start from extreme cold weather,
* G, z8 r. h3 s$ X/ qbasically , 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.. l! N) F5 c% _ O1 o
Either way, the engine shall not be frozen with use of BH.
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If you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
) E7 d: G' H5 _) K$ A ~. O/ v' XA good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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