Toyota Corolla Poor Mileage – Is It Time for a Tune-up?

A in fuel economy like youre experiencing can be caused by a variety of factors, even if youre keeping up with regular maintenance. Here are a few things to consider:

Spark Plugs and Air Filter: Even with regular maintenance, spark plugs can wear out, and air filters can get clogged over time. Both can lead to inefficient fuel combustion, which could cause a decrease in MPG.

Tire Pressure: Ensure that your tires are properly inflated. Low tire pressure increases rolling resistance, which can reduce fuel economy.

Driving Habits: If there have been changes in your driving style, such as more stop-and-go driving o r higher speeds, this can also cause a in MPG.

Fuel Injectors: Dirty o r clogged fuel injectors can result in poor fuel delivery to the engine, leading to decreased fuel efficiency.

Brake Drag: Sometimes, the brake pads might be rubbing against the rotors, causing them to drag and reducing MPG. This can be checked by a mechanic.

Oxygen Sensor: A faulty oxygen sensor can lead to incorrect air-fuel mixtures, causing the engine to burn more fuel than necessary.

Fuel Quality: If youve recently filled up at a new station o r used a different grade of fuel, low-quality o r incorrect fuel can negatively affect fuel economy.

If a tune-up hasn’t been done recently, it’s worth considering that as an option. A tune-up typically includes checking and replacing spark plugs, inspecting the air filter, and ensuring that other components of the fuel and ignition systems are working efficiently.

Additionally, a diagnostic scan may help to identify if there’s a sensor issue o r something that’s affecting the fuel system.