* Engine size: The Hemi came in different sizes (e.g., 5.7L, 6.1L). Larger engines generally get worse gas mileage.
* Cab and bed configuration: A quad cab with a long bed will weigh more and get lower MPG than a regular cab with a short bed.
* Transmission: Automatic transmissions typically have slightly lower MPG than manuals (though manuals were rare in Rams of this era).
* Driving style: Aggressive driving significantly reduces fuel economy.
* Vehicle condition: Proper maintenance (including tire inflation) impacts fuel efficiency.
* Terrain: Driving in mountainous areas will lower fuel economy.
Therefore, there's no single answer. However, you can expect the following *rough estimates* for city/highway MPG:
* 5.7L Hemi: Expect to see around 13-16 mpg city and 17-20 mpg highway. This is a *broad range*.
* 6.1L Hemi: Expect even lower MPG than the 5.7L. Possibly in the 12-15 mpg city and 15-18 mpg highway range. Again, this is a very rough estimate.
To get a more accurate idea of the gas mileage for a specific 2006 Dodge Ram Hemi, you should:
* Check the EPA fuel economy sticker (if still present): This sticker, originally located on the driver's side doorjamb, provides official estimates.
* Consult the owner's manual: This manual usually includes fuel economy information.
* Search online resources: Websites like fueleconomy.gov (US) may have some user-submitted data, but keep in mind that individual results vary widely.
Remember these are just estimates. Actual mileage will vary.
