Engine damage will not happen

來源: xxhhwxc 於 2010-04-20 10:48:56 [] [舊帖] [給我悄悄話] 本文已被閱讀： 次 (210 bytes)
回答: 請教VOLVO車主 由 pr 於 2010-04-18 18:59:19
because of knock sensor. Computer will retard the timing when knock is detected. However performance will suffer and MPG goes down so there is not saving by using regular gas.

Always follow the manual.
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