Maximize Your Fuel Mileage: 10 Smart Ways to Save at the Pump

With rising fuel costs and busy roadways, every drop of gas counts. Whether you're managing a small business fleet, commuting daily, or just trying to keep your monthly budget in check, improving your fuel efficiency is one of the easiest ways to save money and extend the life of your vehicle.

Here are 10 tried-and-true ways to get the most out of every tank:

1. Keep Your Tires Properly Inflated

Underinflated tires can lower your gas mileage. Check your tire pressure at least once a month and before long trips. Always inflate tires to the manufacturer’s recommended PSI, found in your owner’s manual or on the driver’s door frame.

2. Stay on Top of Regular Maintenance

A well-maintained engine runs more efficiently. Schedule routine oil changes, replace dirty air filters, and check spark plugs to help improve combustion and overall performance.

3. Drive Smoothly and Steadily

Aggressive driving — speeding, rapid acceleration, and hard braking — can lower your gas mileage by 15–30% on the highway and 10–40% in city traffic. Ease into starts and maintain a steady pace.

4. Lighten the Load

Every 100 extra pounds in your vehicle can reduce your MPG by up to 2%. Remove unnecessary tools, gear, or storage items from your car or truck when they’re not needed.

5. Use Cruise Control on Highways

Cruise control helps maintain a consistent speed and reduces fuel-wasting fluctuations, especially on long, flat stretches. Just avoid using it in hilly or stop-and-go areas.

6. Avoid Excessive Idling

Idling for more than 30 seconds burns more gasoline than restarting your engine. If you're waiting for someone or parked, it's better to turn the car off and restart when you're ready to move.

7. Keep Your Speed in Check

Gas mileage often decreases rapidly above 50 mph. According to the U.S. Department of Energy, every 5 mph you drive over 50 is like paying an additional $0.30 per gallon.

8. Limit Use of Roof Racks or Carriers

External cargo containers increase wind resistance and reduce fuel economy, sometimes by as much as 25% at highway speeds. Remove roof racks when not in use.

9. Use the Right Grade of Motor Oil

Follow the manufacturer’s recommendation for oil type. Using the wrong viscosity can reduce fuel efficiency by 1–2%. Full synthetic oils often help engines run smoother and more efficiently.

10. Monitor Your Fuel Economy

Track your mileage manually or use a smartphone app to see trends. If you notice a sudden drop in MPG, it could signal a maintenance issue that needs attention — like a faulty oxygen sensor or dirty fuel injectors.

Small Changes, Big Impact

Even if you only apply a few of these tips, the savings can add up over time — especially for those driving frequently or managing company vehicles.

At Rsi Auto Repair, we’re here to keep your car or truck performing at its best. Whether it’s a tune-up, tire service, or fuel system cleaning, our team is ready to help you drive farther on every tank.