Wrong. If it is required, you should use 91.

Car can adjust a little these days. However, the compress ratio determine the octan rating.

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as long as the gas doesn't cause the engine pings, it then means -MoonRivertttt- 给 MoonRivertttt 发送悄悄话 (77 bytes) () 05/11/2013 postreply 21:06:37

Not true. -TBz- 给 TBz 发送悄悄话 TBz 的博客首页 (0 bytes) () 05/11/2013 postreply 22:28:28

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