11 Proven Tips to Improve Gas Mileage and Save Fuel

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A person is refueling a car at a gas station, holding a fuel nozzle inserted into the vehicle’s fuel tank to increase fuel efficiency on their next drive.

Improving gas mileage has multiple benefits: you spend less money and time at the pump, reduce your environmental impact, and keep your vehicle running efficiently. Here are 11 practical tips to boost fuel economy and save money.

1. Get a Tune-Up

If your Check Engine Light is on, it could affect fuel efficiency. A quick tune-up at your local Grease Monkey can diagnose issues like faulty fuel injectors, oxygen sensors, or air conditioning problems—all of which reduce mileage.

2. Replace Spark Plugs Early

Worn spark plugs cause misfires, rough idling, and poor acceleration, all of which waste fuel. Replacing spark plugs at Grease Monkey can significantly improve gas mileage.

3. Check Your Tire Pressure

Proper tire pressure improves fuel economy by up to 3%, according to the U.S. Office for Energy Efficiency and Renewable Energy. Grease Monkey checks and sets tire pressure during every full-service oil change.

4. Keep Your Tires Aligned

Misaligned tires make steering harder and force your engine to work more, reducing mileage. Grease Monkey offers tire rotation and alignment services to improve fuel efficiency and extend tire life.

5. Watch Your Speed

Driving faster burns more fuel. Fuel economy drops sharply above 50 mph—every 5 mph over that is like paying an extra $0.23 per gallon, according to the Department of Energy.

6. Keep at Least a Half-Tank of Gas

A fuller tank reduces evaporation and keeps your fuel pump cool and lubricated. Running on low fuel forces the pump to work harder, reducing efficiency. Aim to keep your tank at least half full.

7. Try a Fuel Additive

Sediments in your gas tank can clog fuel injectors. Using a fuel additive or scheduling a fuel system cleaning at Grease Monkey helps restore efficiency.

8. Avoid Stop-and-Go Driving

Stop-and-go traffic burns more fuel than steady driving. If possible, avoid rush hour and shut off your engine during long traffic jams to save gas.

9. Watch Your RPMs

High RPMs consume more fuel. Keep your tachometer below 3,000 RPM when possible. Use eco-mode if your car has it to maintain lower RPMs.

10. Use Cruise Control

Cruise control helps maintain a steady speed on highways, reducing fuel wasted by frequent acceleration and braking.

11. How to Calculate Mileage

Track your progress by calculating MPG:

  1. Record odometer reading at fill-up.
  2. Subtract previous reading from the new one.
  3. Divide miles traveled by gallons used.

Boost Fuel Efficiency with Grease Monkey

At Grease Monkey, we know a well-maintained engine is key to saving fuel. Visit us for a full-service oil change, tune-up, or wheel alignment, and start getting the most out of every gallon.

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