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there are a few kinds of BH that help cars start from extreme cold weather,: j3 H- m, R, | R0 v: 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.. G j2 V4 G) Y3 K, j2 T
Either way, the engine shall not be frozen with use of BH.) h% Q1 P; X8 A
Google block heater, D4 q# Z# O/ ?
; u9 V ^" a4 {If you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.! p; p l- z3 v) n
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees.# Z5 u! X) [. M+ t2 Z
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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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