This is mainly because gasoline in winter

來源: 2024-01-31 10:48:43 [舊帖] [給我悄悄話] 本文已被閱讀:

is different from gasoline in summer. Gasoline contains the higher concentration of butane in winter blends that acts as a kind of "natural" additive for easier cold-weather starting. This switch normally happens in October or November.

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Alex