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there are a few kinds of BH that help cars start from extreme cold weather,
1 L" i d. W" C3 X4 u7 wbasically , 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.
( p; \2 c5 O3 }$ @) rEither way, the engine shall not be frozen with use of BH.1 N8 S$ e t" o) l5 Q
Google block heater3 r* S; g7 ]" _) l3 B
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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." j, w$ y( w. x% P% e1 J) c. P$ U" p
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees., _8 w9 n( N: |4 h y9 O
/ h; w8 I' u6 D. i# fif 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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