The conflict in the Middle East and resulting oil-price spikes are pushing pump prices higher. The national average is about $3.88 per gallon, roughly a dollar more than a month ago, so finding ways to stretch each tank is useful. Here are seven practical tips to maximize fuel economy and save money.
Obey speed limits
Fuel efficiency typically falls off at speeds above about 50 mph. The Department of Energy estimates every 5 mph over 50 is roughly equivalent to paying an extra 27 cents per gallon in fuel. Slowing down to posted limits can reduce fuel use and lower the chance of a ticket.
Drive conservatively
Avoid rapid acceleration and hard braking. Aggressive driving can reduce fuel economy by 15%–40%. Smooth, steady acceleration and anticipating traffic to minimize stops will stretch your miles per gallon and reduce wear on brakes, tires and drivetrain. Use cruise control on long, dry highway runs to maintain a constant speed.
Keep tires properly inflated
Underinflated tires increase rolling resistance and make your engine work harder. Tires naturally lose about 1–3 psi per month and more with temperature drops or slow leaks. Check pressures regularly and inflate to the recommended psi (usually on a sticker inside the driver’s door) to preserve fuel economy and tire life.
Minimize idling
Idling for more than about 10 seconds uses more fuel than restarting the engine. Modern engines warm up faster when driven, so lengthy warm-ups aren’t necessary—30 seconds is typically enough. Turn the car off when it’s safe to do so instead of letting it idle.
Combine trips
Fewer cold starts and consolidated errands save fuel. Plan and map efficient routes, run multiple errands in one outing, and combine trips by grouping appointments or deliveries. Reducing the number of short trips is especially impactful because engines are less efficient until they reach operating temperature.
Watch your cargo
Extra weight reduces fuel economy—roughly 1% for every 100 pounds added. Roof racks and cargo boxes increase aerodynamic drag; a rooftop box can cut fuel economy 2%–8% in city driving and up to 25% on the highway. Remove unused racks and carry heavy items inside when possible; if you must carry gear, a rear-mounted option usually has less impact.
Stay cool the right way
Air conditioning increases fuel use (up to about 10%), but open windows create drag at speed. At low speeds (below roughly 45 mph), open windows are more efficient. Above that speed, close windows and use A/C for better overall fuel economy.
Bottom line
You don’t need a new car to lower fuel spending. Slowing down, driving smoothly, maintaining tires, minimizing idling, combining trips, limiting excess weight and managing climate controls can all meaningfully increase miles per tank, save money, and reduce emissions.