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I put 25,000 miles on since having the emissions recall done last May, I drive about 70% highway and my MPG is 1MPG higher than my 70,000 mile average before that.

With that said ever since I got this done my car will not run without lots of knock on 91E0 premium when It could run this fine before. I go out of my way now to find 93E10 premium instead, runs great on that. As bad as mine can run on 91E0 now, I have not even attempted 89 or 87 octane since the emissions recall.
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