Posted on 4/28/2025
Not getting the mileage you used to? If your fuel economy has taken a noticeable hit, it's usually not just a fluke. From worn-out parts to simple habits, there are several reasons your vehicle might be burning more fuel than it should. Figuring out the cause can help you save money at the pump and avoid unnecessary wear on your engine. We’ll cover eight of the most common causes and what they mean for your car. 1. Incorrect Tire Pressure Tire pressure plays a bigger role in fuel efficiency than most people realize. When your tires are underinflated, they create more rolling resistance, making your engine work harder to move the vehicle. Even a few PSI below the recommended level can reduce your miles per gallon noticeably. It’s a good idea to check your tire pressure monthly and adjust it based on the manufacturer’s specifications—usually found on a label inside the driver’s door. 2. Worn Spark Plugs Your engine&r ... read more