EPA fuel economy numbers are performed on a dyno using strict standards of acceleration, number or stops, MPH and time. These standards were established in 1970s mimicking city driving. It's been modified over the decades. Same concept used for hwy and combined also using formulas.
1. Do you drive on a dyno to a scripted set of criteria that was used to estimate these economy numbers or do you drive in real world city stop and go driving that may or may not have you sitting in traffic or swinging through a crowded drive through with periods of idling.
2. Do you drive in LA city, NYC, Hoboken, Boise, Sioux City, Denver, or a small 3 red light city, etc. You can drive in each of these cities and get different MPG results. In fact you can drive in any one of the large cities at different times of day or night and get different results.
Fuel economy numbers are estimates of what should be average. Meaning some see lower and some see higher. You might be constant in your driving habits but not everything else is constant.
Last edited by ONEZ ST; 1 Week Ago at 06:41 PM.