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Chev2021

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About Chev2021

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  1. I lifted my 2021 silverado RST on 35x12.50x20s with a 6 inch lift and my MPGs went to s**t... I expected a little bit of a decrease but I've seen it go down to average 9-10, when before I was getting 14-15 regularly. Now, I can only average 15 with cruise control down the highway for half an hour. I've looked around seeing people saying to calibrate the computer for the new tires? Would a dealership do that or an outside company? Also regearing was an option too for better MPGs? I just dont want to spend 80 bucks on gas every 5 days haha.
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