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there are a few kinds of BH that help cars start from extreme cold weather,2 q |5 L: |) E5 c$ Y
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.
* y& u, Y( V; \! W9 S4 ]Either way, the engine shall not be frozen with use of BH.$ p A: A0 s* w. y) I
Google block heater
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5 E' o& ]/ V( A- }. v2 EIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.& W- [/ R1 V+ L2 I5 U9 \+ ]
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees.
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) F3 R+ E& M) ~! ~if 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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