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there are a few kinds of BH that help cars start from extreme cold weather,
+ G2 y$ R8 t6 \. R2 a* abasically , 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./ q7 x; ?/ q V5 m% y0 U0 D+ K k! B
Either way, the engine shall not be frozen with use of BH.
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+ H3 v; l' [) `, ~, Y2 n% b% a* PIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.. U6 `- z: v0 ^" E. E- u* M
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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