What Main Factors Determine a Car’s Real-World Gas Mileage?
Real-world gas mileage varies significantly from EPA ratings due to factors like speed, driving habits, tire pressure, cargo weight, and weather. Aggressive acceleration, high speeds, underinflated tires, and cold temperatures can reduce fuel efficiency by up to 15%, while vehicle weight and aerodynamic drag also play key roles. Proper maintenance and smooth driving help optimize fuel economy in everyday conditions.