My 2021 silverado gets maybe 400 miles per tank when my 2017 would get over 500 miles per tank, same power train on both vehicles and dealership say I need to fill it up a few time and it should get better gas mileage, we'll I have just over 5k miles on it and still no change on gas mileage results.
My 2021 silverado gets maybe 400 miles per tank when my 2017 would get over 500 miles per tank, same power train on both vehicles and dealership say I need to fill it up a few time and it should get better gas mileage, we'll I have just over 5k miles on it and still no change on gas mileage results.
- Geno K., Phoenix, US