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Message: <blockquote data-quote="earlman" data-source="post: 365072" data-attributes="member: 25344">It was just fine. Recently drove it 1,800 miles cross-country on 93 octane to 'blow out the pipes.'The average and instant MPG readings all read correctly going off of what my 05 does.I've filled at 1/4 tank, 1/2 tank. Ran it highway, city, let it idle, not let it idle, etc.'Fuel range' estimator is now consistently off by 100-150 miles.</blockquote>