1999-2009 [Subscribe to Daily Digest] |
I tried once a full tank of 87 octane and drove my car "easy". Spark knock (not good) was hard to control. I was told that in very cold weather I could probably get away with 89 octane but that also was problamatic. I stick with 91-93 octane exclusively now and get 1-2 mpg better performance than 89 octane but no spark knock.
posted by 52.129....
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