Changing tire size didn't effect mileage all that much, but you do need to factor in the new tire size since speedometer and odometer will read less than actually miles/speed traveled with larger diameter tires.... For me it was/is 8%..... https://tiresize.com/speedometer-calibration/
"...A man's rights rest in three boxes: the ballot box, the jury box and the cartridge box..." Frederick Douglass, 1867
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