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there are a few kinds of BH that help cars start from extreme cold weather,. B0 V7 Z$ ^2 Y, Y# E+ U% ?
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.& `+ X9 F0 Q9 U) M5 ]5 k2 G
Either way, the engine shall not be frozen with use of BH.
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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.3 C! J3 J9 m0 P* B8 C6 h Y
A 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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