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there are a few kinds of BH that help cars start from extreme cold weather,
0 Q- O1 k+ _" m9 c( o8 X7 ~1 Dbasically , 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.
; A( ?0 o& E3 |; EEither way, the engine shall not be frozen with use of BH.7 z J/ \! N! f: {7 @$ q
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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./ U/ w9 i9 D8 `
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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