How to Save Gas: 10 Driving Habits That Lower Your Fuel Bill

Fuel prices are out of your control, but how much fuel you burn is not. Small changes in driving habits add up to real savings over a year.

First, see what a typical trip costs you:

Step by step

Accelerate smoothly
Press the gas pedal gently from a stop. Rapid acceleration burns far more fuel than a gradual start.
Anticipate traffic
Look ahead and coast toward red lights instead of braking hard at the last moment.
Slow down on the highway
Fuel economy usually drops quickly above about 50 mph because air resistance rises sharply.
Use cruise control on open highways
Keeping a steady speed avoids unnecessary acceleration. On hilly roads, manual control can be more efficient.
Check tire pressure monthly
Use the pressure printed on the sticker in the driver's door frame, not the maximum on the tire sidewall.
Remove extra weight and roof racks
Every extra 100 pounds reduces mileage slightly, and roof boxes add significant drag.
Avoid long idling
Idling burns fuel without moving you. Turn off the engine when parked and waiting for more than a minute, where safe and legal.
Combine errands
A warm engine runs more efficiently. Several short trips from a cold start use more fuel than one combined trip.
Keep up with maintenance
Replace dirty air filters on older cars, use the recommended motor oil and fix check-engine problems promptly.
Use the right fuel
Unless your manual requires premium fuel, regular gas works fine and costs less.

Habit	Typical effect
Calm acceleration and braking	Up to 15–30% better mileage on highways
Driving 65 instead of 75 mph	Often 10–15% less fuel
Correct tire pressure	Up to about 1–3%
Removing a roof cargo box when not in use	Several percent at highway speeds

If you drive a lot, compare what you spend on gas with the cost of charging an EV at home:

Is it better to use AC or open windows?

At low speeds, open windows are usually more efficient. At highway speeds, the drag from open windows can make AC the better choice.

Do fuel-saving gadgets work?

Most aftermarket devices that promise big mileage gains have shown little or no benefit in independent tests.