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there are a few kinds of BH that help cars start from extreme cold weather,( V' M" j: o1 H3 o) o2 k& 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/radiator, and keep the engine block warm.4 Q4 @4 x4 Y& c* @
Either way, the engine shall not be frozen with use of BH.! A6 T, e: _2 H" A" z! g$ _+ I
Google block heater( {1 z, R2 N9 o, ^, ~
! |$ D6 ?2 |$ o- U6 YIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
8 v2 p5 l3 t" Z. e3 M: \+ yA good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees.
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0 E# h8 |0 m. w" ? A' D+ |2 r" C/ ?6 uif you have BH or SO, but ur car still could not be started up, and you have not checked/replaced your battary before the winter came, I bet the battary is dead. |
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