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there are a few kinds of BH that help cars start from extreme cold weather,
& I+ t. z4 c' S0 B" |7 K }2 ~4 X- fbasically , 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.9 A) W9 q# \" }- ?$ q
Either way, the engine shall not be frozen with use of BH.# Q5 Q: J* [+ W6 l
$ H# `# ^8 ? V0 }( q6 y. q; VIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
, I( l6 b- O+ U: r& DA good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
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