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Old 08-26-2013, 02:50 PM   #5
wakespeak

 
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Drives: 2020 ZL1 1LE
Join Date: Sep 2012
Location: Austin, Texas
Posts: 1,420
Long term average per DIC is 17.2-17.4 no matter how I drive. That is expected/acceptable to me. I rarely drive on the highway although my commute has some 65 mph sections in between lights.

I think you will only see any significant change if constant highway driving or if you short shift (1-4 or otherwise shift at very low rpms).
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