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there are a few kinds of BH that help cars start from extreme cold weather,
, s- Z& m" H% |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.0 A) N$ {" P4 [' L$ s( q
Either way, the engine shall not be frozen with use of BH.
; R, q( ]9 t7 Z& q5 vGoogle block heater
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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.; s. Y4 _9 y9 ?6 E7 j) i5 Z
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees.! l' [9 |" C9 D$ K/ Q
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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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