How good will it get?
A year ago, my then new 2013 Silverado 6.0 pickup was getting about 12mpg and I was not happy. Last Spring it started averaging close to 13 mpg. This fall, with 15,000 miles on the odometer it is ge...
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I had the same experience on worn tires. 245/75-16 lost a full 1" in diameter, and weren't down to the wear bars. Check your odometer (at least 50 miles) either by mile markers or GPS. I re-calibrate my ScanGauge about every 10,000 miles to maintain accuracy. With brand new Michelins my truck odometer was still off 2.2%
