If it feels like you just filled up your tank and you’re already watching the gas gauge drop, there may be a reason. Some of the biggest gas wasters have less to do with gas prices and more to do with everyday driving habits and basic car maintenance.
From low tire pressure to carrying around too much stuff, small things can make your car work harder and use more fuel. Here are 14 reasons your gas may be disappearing faster than it should.
You’re Buying the Wrong Grade of Gas
Paying extra for premium gasoline doesn’t automatically improve fuel economy if your vehicle was designed to run on regular. Follow the fuel recommendation in your owner’s manual rather than assuming a more expensive grade will make your tank last longer.
You’re Letting the Car Idle Too Long
Sitting in a parked car with the engine running uses gasoline without getting you anywhere. A few minutes may not seem significant, but regularly idling while waiting for someone or sitting in a parking lot can add up over time.
Related: Ways to Keep Rising Gas Prices From Draining Your Wallet
You’re Carrying Too Much Extra Weight
It’s easy for the trunk to become permanent storage for boxes, tools, sports equipment, and other things you rarely use. The more unnecessary weight your car carries, the harder the engine has to work, so clear out anything you don’t regularly need.
You’re Accelerating Too Quickly
Taking off quickly from stoplights and constantly pressing hard on the gas can burn considerably more fuel than driving at a steady pace. Gradual acceleration is easier on your car and can help stretch a tank of gas further.
Related: 12 Things You Should Avoid Doing at a Gas Station
You’re Braking Too Often
If you’re constantly speeding up only to slam on the brakes moments later, you’re wasting much of the fuel you just used to gain speed. Leaving more space between vehicles and anticipating traffic ahead can help you maintain a steadier pace.
Your Tires Are Underinflated
Low tire pressure increases rolling resistance, forcing your engine to work harder to move the car. Check your tires regularly and keep them inflated to the pressure recommended by your vehicle manufacturer.
Related: How to Save Money on Gas Even With Rising Fuel Prices
Your Wheels Are Out of Alignment
Misaligned wheels can make your car pull to one side, wear tires unevenly, and create additional resistance while driving. If you’ve noticed any of these signs, an alignment may help your car roll more efficiently while extending the life of your tires.
Your Spark Plugs Are Worn Out
Old or faulty spark plugs can cause misfires and prevent your engine from running as efficiently as it should. Replacing them according to your vehicle’s recommended maintenance schedule can help restore smoother performance.
Your Oxygen Sensor Is Failing
Your car’s oxygen sensors help the engine determine how much fuel it needs based on the amount of oxygen in the exhaust. When a sensor isn’t working properly, the engine may use more gasoline than necessary, so don’t ignore a check engine light or a sudden drop in mileage.
Your Air Filter Is Dirty
A dirty engine air filter can restrict airflow and affect performance, especially if it becomes severely clogged. Check the filter according to your vehicle’s maintenance schedule and replace it when necessary.
You’re Using the Wrong Motor Oil
Using an oil viscosity that isn’t recommended for your engine can affect how efficiently it operates. Check your owner’s manual for the proper oil type and stay on top of regular oil changes.
You’re Running the Air Conditioner Constantly
Your car’s air conditioner requires energy to operate, which can increase fuel consumption under certain driving conditions. You don’t need to stop using it entirely, but parking in the shade and venting a scorching-hot car before turning the AC up can reduce some of the workload.
Related: 10 Ways to Stay Cool This Summer Without Running the Air Conditioner All Day
You’re Not Using Cruise Control When It Makes Sense
On long, relatively flat highways, cruise control can help maintain a more consistent speed instead of repeatedly accelerating and slowing down. Save it for appropriate driving conditions, since heavy traffic, slippery roads, and steep terrain require more direct control.
You’ve Fallen Behind on Regular Maintenance
A sudden drop in gas mileage can sometimes be your car’s way of telling you something isn’t working properly. Staying current on routine maintenance and investigating warning lights or noticeable performance changes can help prevent a small issue from becoming a bigger, more expensive problem.
