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there are a few kinds of BH that help cars start from extreme cold weather,5 }7 ?7 g& h. B7 `0 u' L1 M, p
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 P* S) q6 z* \! u6 M, `
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.1 a- Q- @6 A$ Z2 b) Q: M! O# E- C
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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