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there are a few kinds of BH that help cars start from extreme cold weather,: O. H, t' L4 C- R* x5 F0 i. b+ S% J
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.+ G5 [5 Z' L7 h! ?
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.
. L3 d3 g9 M" H7 ?8 W' @A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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