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there are a few kinds of BH that help cars start from extreme cold weather,$ U% ]1 a7 ~ g* l% s: g$ R: Z
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.
$ N) F; z$ [- |; WEither way, the engine shall not be frozen with use of BH. T" c* m% Y8 {- ^% S8 x
Google block heater
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, Y# F6 z+ _+ f9 pIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
* @. S5 Y# L1 p5 Q( tA good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees.
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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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