Fuel efficiency isn’t just about how you drive—it’s also about how well you take care of your vehicle. A properly maintained engine, transmission, and tire system can dramatically improve gas mileage, while neglected upkeep can lead to higher fuel consumption and long-term repair costs.
Use this maintenance checklist to keep your vehicle running efficiently and stretch your fuel budget further.
- Check and Maintain Tire Pressure Monthly
According to the U.S. Department of Energy, underinflated tires can lower fuel economy by up to 3%. Properly inflated tires reduce rolling resistance, improving fuel efficiency and extending tire life. Use a reliable gauge and adjust based on the PSI recommendations found on your vehicle’s door frame or owner’s manual.
- Change the Engine Oil on Schedule
Using the manufacturer-recommended grade of motor oil can improve fuel efficiency by 1%–2%. Refer to your owner’s manual for oil change intervals, and always opt for fuel-efficient or synthetic blends when appropriate. Regular oil changes keep your engine clean and running smoothly, reducing friction and wear.
- Replace Air Filters Regularly
Dirty air filters restrict airflow to the engine, forcing it to burn more fuel. The EPA recommends replacing air filters every 12,000–15,000 miles, or more often if you drive in dusty environments. This quick fix can boost mileage and protect your engine from contaminants.
- Inspect and Replace Spark Plugs
Worn or dirty spark plugs can cause engine misfires, reducing fuel efficiency and performance. Most vehicles require new spark plugs every 30,000–100,000 miles, depending on the type and manufacturer. Check your service history and replace them as needed to maintain consistent combustion.
- Align and Balance Your Tires
Misaligned wheels increase drag and uneven tire wear, both of which lower gas mileage. If your vehicle pulls to one side or the steering feels off-center, get a wheel alignment. Balancing tires also ensures smooth operation and better traction.
- Monitor Fuel System and Injectors
Fuel injectors can become clogged with carbon deposits, disrupting proper fuel delivery. Consider using fuel system cleaners every few thousand miles or during oil changes. For high-mileage vehicles, a professional cleaning may be necessary to restore efficiency.
- Maintain the Cooling System
An overheating engine reduces efficiency and risks long-term damage. Keep coolant levels within recommended ranges and flush the radiator system as advised by your vehicle’s service manual. A well-regulated engine temperature ensures optimal combustion and reduces fuel waste.
- Inspect the Exhaust System for Leaks
A damaged or leaking exhaust system can disrupt engine performance and lead to wasted fuel. During regular inspections, check for corrosion, loose connections, and strange noises—especially from the muffler or catalytic converter.
- Replace the Fuel Filter
The fuel filter keeps contaminants out of the engine. If it’s clogged, your fuel pump has to work harder, reducing efficiency and potentially causing engine hesitation. Replace it according to your maintenance schedule—often between 20,000 and 40,000 miles.
- Keep Up With Software Updates
Modern vehicles rely heavily on onboard computers to regulate fuel delivery and emissions. Check with your dealership or mechanic to ensure your vehicle’s software is up to date. Manufacturers often release performance and efficiency updates that improve MPG over time.
Bonus Tip: Combine Maintenance With Smart Fuel Payments
Once your vehicle is running at peak efficiency, don’t leave money on the table at the pump. You can earn cashback with Shell or get rewards with BP when you use Fluz to buy digital gift cards for fuel purchases. It’s a simple way to add more value to every fill-up.
To start earning on routine refueling, visit Fluz.
