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there are a few kinds of BH that help cars start from extreme cold weather," S5 o9 ~4 H& {1 L( V, n+ r. V: `
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.
$ t/ I0 } [7 t8 [" dEither way, the engine shall not be frozen with use of BH.
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$ \/ A- S8 U! M( R2 f! ?$ `If you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
3 F8 n& F) H' U9 _' M4 qA good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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