Improve Fuel Efficiency: High‑Impact Habits and Maintenance

Fuel economy gains often come from predictable, repeatable habits. Stack these changes for 5–20% better MPG depending on your baseline.

Driving Habits (Daily Wins)

• Smooth launches: Gentle throttle in the first few seconds saves the most.
• Steady speeds: Use cruise on flat highways; anticipate slowdowns to coast instead of brake.
• Right‑lane mindset: Let faster traffic pass; sudden speed swings waste fuel.

Maintenance (Quiet MPG Killers)

• Tire pressure: Check monthly and before trips; under‑inflation increases rolling resistance.
• Fluids and filters: Follow the manual for oil grade and air filter intervals.
• Fix engine lights: Misfires and O2 sensor issues can tank MPG.

Weight and Aerodynamics

• Declutter: Remove heavy, unused items.
• Roof racks/boxes: Take them off when not needed; they create drag that hurts highway MPG.

Tech Aids

• Trip computer: Track real‑time MPG to learn what helps your specific car.
• Tire pressure monitoring: Use alerts as a prompt to check for slow leaks.

When AC vs. Windows Matters

• City speeds: Windows down is usually fine; AC modestly reduces MPG.
• Highway speeds: Windows down increases drag; AC may be more efficient and comfortable.

FAQs

Does AC hurt MPG? Slightly, but at highway speeds the extra aerodynamic drag from open windows can cost more.