Routine car maintenance isn’t just about keeping your vehicle running—it’s one of the most effective ways to stretch your gas mileage and lower long-term fuel expenses. Small, regular upkeep tasks can improve engine efficiency, reduce drag, and prevent fuel waste.
Here’s a breakdown of the simplest maintenance habits that contribute directly to better fuel economy, lower emissions, and longer vehicle life.
- Keep Your Tires Properly Inflated
Tires that are underinflated increase rolling resistance, forcing your engine to use more fuel to keep moving. According to the U.S. Department of Energy, proper tire inflation can improve gas mileage by up to 3%.
Check your tire pressure monthly using a digital or dial gauge. Inflate tires to the recommended PSI listed on your driver’s side door jamb or in your vehicle manual. Cold weather especially causes pressure to drop, so adjust seasonally.
- Change Your Engine Oil Regularly
Old or dirty engine oil increases friction, which reduces your engine’s ability to operate efficiently. Follow your manufacturer’s recommended oil change interval—usually every 5,000 to 7,500 miles unless synthetic oil is used.
Using the manufacturer-recommended oil grade can also boost fuel economy by 1–2%, according to FuelEconomy.gov.
- Replace Dirty Air Filters
An engine air filter clogged with dust and debris limits airflow, making your car work harder. While modern engines can compensate electronically, changing a dirty filter still helps maintain peak performance and fuel efficiency.
Check your air filter every 12,000 to 15,000 miles or more frequently if you drive in dusty conditions.
- Maintain Your Spark Plugs
Faulty or worn-out spark plugs can cause misfires, reduced acceleration, and lower fuel efficiency. For most vehicles, spark plugs should be replaced every 30,000 to 100,000 miles, depending on type and usage.
If your check engine light is on or you’re noticing sluggish performance, this could be a quick fix with major benefits.
- Check Wheel Alignment and Balance
If your car pulls to one side or your steering wheel vibrates, it may be time for an alignment. Poor alignment causes tires to wear unevenly and increases friction, both of which reduce fuel economy.
Most shops recommend checking alignment annually or every 10,000 miles. It also helps extend tire life.
- Keep Your Trunk Light
Hauling excess weight decreases fuel economy. Remove unnecessary items from your trunk or roof rack to improve performance, especially for compact or midsize cars.
Every additional 100 pounds can reduce fuel efficiency by 1%, particularly in smaller vehicles.
- Keep Your Engine Tuned
A well-tuned engine maximizes combustion efficiency and uses less fuel. Even small issues like a malfunctioning oxygen sensor can lower gas mileage by as much as 20%. Regular diagnostics and tune-ups are a worthwhile investment for fuel-conscious drivers.
Bonus Tip: Combine Maintenance with Smarter Fuel Payments
When you take good care of your car, don’t miss the opportunity to optimize how you pay for gas. With Fluz, you can earn cashback with a Shell virtual card or get rewards with a Chevron virtual card—stacking savings alongside your maintenance routine.
Browse fuel gift cards with instant cashback by visiting Fluz.
Final Thoughts
Proper car maintenance doesn’t just extend the life of your vehicle—it protects your wallet at the pump. By staying on top of basic upkeep like tire pressure, oil changes, and air filters, you’ll improve fuel efficiency and avoid costly repairs down the road.
Pair these habits with fuel rewards and cashback strategies, and you’ll maximize savings with every mile.
