If you want to save cash on gas, take some tips from America's fuel-efficiency freaks

Fecha de publicación: 8 de octubre de 2026, 8:17

Paul Westbrook/Enerjazz; Hadi Ahmad; Getty Images; Rebecca Zisser/BI Dave Castino has tracked his fuel economy across all 43,497 miles he's driven in his 2021 Mazda3 over the past three years. He averages 39.4 miles per gallon — 46% better than the Environmental Protection Agency's combined…