2015 Silverado

[Andrew2015]

What kinda numbers are you guys getting for mileage running 33x12.5 tires? On a leveled 2015 Silverado 1/2 ton 

[catpartsman]

I have a 15 Sierra with 295/55/20 Toyos and I’m averaging 18-20 on interstate cruising at 70 MPH. It is leveled with 5100’s and a 1/2 lower spacer and I have a 2” block out back. I have a Airaid Jr kit and muffler delete as well as a diablew tune with AFM delete and running 89 octane fuel. I am also NOT on stock wheels. Before the tires and wheels and tune i was averaging 20-22 on interstate at 70. Tires and wheels killed my mileage though. Tune helped get some of it back.


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[Lgetz]

2015 AT 4x4 6.2, with Toyo RT 33x12.5s on stock 20s, average 12.5-13.4 in city and 18.5-19.5 on highway.  Best average over 50 miles is 21mpg, though I was treating the go pedal like stepping on grandma's callouses.