Question: what is normal fuel consumption?
Answer: Large trucks, over 33,000 pounds (15,000 kg), averaged 5.7 miles per US gallon (41 L/100 km; 6.8 mpg‑imp). The average economy of automobiles in the United States in 2002 was 22.0 miles per US gallon (10.7 L/100 km; 26.4 mpg‑imp). By 2010 this had increased to 23.0 miles per US gallon (10.2 L/100 km; 27.6 mpg‑imp).