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there are a few kinds of BH that help cars start from extreme cold weather,; `3 U) c1 v0 C9 c! {( N% G% j9 o
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.! \# |" K) s3 H' R9 g1 j& Z& s
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.! _" z' B- m' o4 f
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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