What is a good mileage for a car

If mechanically, the car or SUV is in sound condition, then check if any of the following conditions are applicable that may result in poor mileage:

Load: In recent days, if you have used the vehicle with a heavier load, either in the form of passengers, luggage or both, then you should expect a lower mileage.

Towing: When you tow a trailer, a flatbed or another vehicle, the load as well as aerodynamic drag of the vehicle adversely affects the mileage of your vehicle.

Driving Conditions: In stop-and-go traffic, windy regions or water-logged driving conditions, you can expect the vehicle to return a lower gas mileage than usual.

If you also happen to be driving on the freeways or highways, then depending on the vehicle’s performance and how fast you have to drive it, you can expect a lower mileage. Especially low displacement vehicles, which are not designed for continuous high speeds, highway driving can instead lower their mileage during the high-speed runs.

Driving Style: Depending on the driving style of the driver, the mileage can also drop.

For example

how are car miles calculated

how does a car calculate mileage