As gas prices continue to strain household budgets, many drivers assume there’s little they can do beyond driving less. But the reality is, your vehicle could be quietly wasting fuel every day and fixing it may be easier than you think.

Most of the biggest gains in fuel efficiency don’t come from expensive upgrades, but from small, often overlooked maintenance habits that take just minutes to address.

Roanoke, VA

Author: Roanoke Rambler Staff

Published: 5:05 AM EST May 13, 2026

Edited: 5:05 AM EST May 13, 2026

As gas prices continue to swing unpredictably and household budgets tighten, one of the most immediate ways drivers can take back control is right under the hood. For many Americans, especially in car-dependent regions like Southwest Virginia, fuel efficiency isn’t just a technical concern; it’s a daily financial reality.

Yet for all the talk of rising costs, the solutions often remain overlooked, misunderstood or buried in jargon. What if improving your gas mileage didn’t require expensive upgrades or mechanical expertise — just a clearer understanding of how your vehicle actually works?

That’s where Maggie Hutton comes in. Known locally by some of her clients as “The Magnificent Mechanic,” Hutton has built her reputation on breaking down complex automotive concepts into practical, empowering advice anyone can use. Her approach is simple: no intimidation, no gatekeeping, just honest guidance to help drivers save money, extend the life of their vehicles and feel more confident behind the wheel.

In her own words:

"Before diving into today’s topic, I want to introduce myself. My name is Maggie Hutton, and it is a pleasure to meet you all. I believe in helping people understand their vehicles in a way that is educational, approachable and empowering. Growing up, I did not know I would become a mechanic. I only knew that I wanted to help others and educate people with patience and empathy. Today, I know that is my purpose.

When I first entered the automotive field, all I knew how to do was change a spare tire. Since then, I have dedicated myself to learning more every day. I especially want to encourage women who may feel intimidated by the automotive industry. Men are welcome too, of course, but women are often underestimated or taken advantage of when it comes to vehicle repairs and maintenance.

I believe we are all equals. No one knows everything, and everyone has knowledge worth sharing. My goal is to teach in a way that is understanding rather than demeaning.

So, let’s start with a topic that affects nearly every driver: improving gas mileage. The biggest factor affecting fuel economy begins inside your engine’s combustion chamber, where the proper mixture of air and fuel creates the power needed to move your vehicle."

Here are five ways to improve your gas mileage and help your vehicle perform at its best.

1. Use Fuel Injector and Throttle Body Cleaners

Fuel injector and throttle body cleaners help remove carbon buildup inside the engine and fuel system. These cleaners work by circulating through the system while the vehicle runs, helping break down deposits that restrict airflow and fuel delivery. Carbon buildup can prevent valves from operating properly and may cause fuel injectors to clog over time, especially in gasoline direct injection systems. Some drivers notice a sulfur or “rotten egg” smell or light smoke from the exhaust during the cleaning process. That can be a sign the cleaner is doing its job by burning away deposits.

Personally, I have had good experiences with products such as Sea Foam, STP fuel injector cleaners and Lucas Oil fuel additives. I am not sponsored or paid to mention these products — they are simply products I trust.

2. Use Fuel Tank Additives

Fuel additives can also help improve performance and fuel economy. These additives are poured directly into the gas tank and are designed to help clean the fuel system or reduce moisture buildup caused by ethanol-blended fuels. Ethanol can separate when mixed with moisture, creating water contamination in the fuel system. That can negatively affect performance and lead to restricted fuel flow. Fuel stabilizers and injector cleaners can help reduce those issues and keep the fuel system operating more efficiently.

3. Replace Dirty Air and Fuel Filters

Your engine air filter plays a major role in combustion. Think of it as your vehicle’s lungs. A dirty air filter restricts airflow, making it harder for the engine to breathe and operate efficiently. One easy way to inspect an air filter is by holding it up to the light. If little or no light passes through it, it is probably time for a replacement. Fuel filters are just as important. Fuel is the vehicle’s source of energy, and a clogged fuel filter can restrict flow and reduce efficiency. Replacing filters regularly can improve both performance and fuel economy.

4. Maintain Proper Tire Pressure

Tires have a major impact on gas mileage. Tires inflated to the proper PSI allow the vehicle to carry weight correctly and roll more efficiently. Drivers can usually find the recommended tire pressure inside the driver’s side door panel or in the owner’s manual. Tire tread and seasonal tire choices can also affect fuel economy. Regular tire rotations — typically every 7,500 to 10,000 miles — help tires wear more evenly and extend tread life. If you are unsure about the best tires or pressure for your vehicle, ask a trusted local tire professional.

5. Stay on Top of Oil Changes

Clean oil is critical to proper engine lubrication. Dirty or worn-down oil creates more resistance inside the engine and makes it harder for moving parts to operate smoothly. As a general guideline: Conventional oil should typically be changed about every 3,000 miles. Synthetic blend oil is often changed around every 5,000 miles. Full synthetic oil may last between 7,500 and 10,000 miles, depending on manufacturer recommendations and driving conditions. Drivers should still check oil levels regularly and follow the maintenance schedule recommended for their vehicle.

Next Steps to Save on Gas

At its core, improving gas mileage isn’t about gimmicks or quick fixes — it’s about consistency, awareness and understanding how your vehicle actually works. The good news is that none of these steps require advanced mechanical knowledge, just a willingness to pay attention and stay on top of routine care.

If you’re not sure where to start, begin small. Check your tire pressure this week. Take a look at your air filter. Add a fuel system cleaner before your next fill-up. Schedule that overdue oil change. Each of these steps takes minutes, but together they can make a noticeable difference in how your vehicle performs, and how much you spend at the pump.

Over time, these habits don’t just improve fuel efficiency, they extend the life of your vehicle and help you catch problems before they become costly repairs.

Most importantly, don’t be afraid to ask questions, whether that’s to a trusted mechanic or through resources that help you better understand your car. Confidence behind the wheel doesn’t just come from driving, it comes from knowing what’s happening under the hood.