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OP, what is the length of your trips, and how often are you filling up? Even running the AC driving short trips in the Summer heat shouldn’t be that low. My 12 ZL1 got about 13-14 and I wasn’t driving it to get fuel economy. I’d at least do a manual calculation of fuel economy and check it against the computer
Last edited by DangerZL1; 07-12-2018 at 07:26 PM.
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