Picking up a set of denali wheels and 285/45r22 tomorrow, they will be replacing my 2016 z71 18” 265/65-18 tires and wheels. Overall height appears to be close so I shouldn’t have to worry about the speedometer, but what can I expect out for MPG? It seems that I save about 3lbs per tire but I’m sure I make that up on the 22” wheel.