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there are a few kinds of BH that help cars start from extreme cold weather," }* K* Y2 H G
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.
- h7 }" S3 J) nEither way, the engine shall not be frozen with use of BH.. O1 W& j( o8 j( O
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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.* t9 W7 l- e4 a R! M3 R
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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