Every two weeks or so, the Ram rolled into a gas station and gulped. Twenty-nine full tanks later, the truth: the Ram averaged 15.77 miles per gallon across two hundred sixty-three days. That's twenty-one percent off the EPA sticker — and honest.
Each dot is one tank. X-axis: average outside-air temperature during that tank. Y-axis: measured MPG. The Ram gets meaningfully thirstier when the mercury drops.