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there are a few kinds of BH that help cars start from extreme cold weather,
2 i* E& u- I" Z; j6 ?2 i# L: mbasically , 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 ?6 T1 D) g5 x7 q& I/ d! n
Either way, the engine shall not be frozen with use of BH.
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+ D) k+ Z. R! P' D: X5 D5 y3 n. qIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.- j+ H, [9 h9 n9 x4 C9 v7 K- s
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees.% U1 |, x @$ d Y* w5 i5 O
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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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