Why is gas mileage going down on Toyota RAV 4 after new brake pads?

Replacing brake pads should not directly affect the gas mileage of your Toyota RAV4. Gas mileage is typically influenced by factors like driving conditions, tire pressure, engine health, and driving behavior. If you notice a decrease in gas mileage after replacing your brake pads, it's recommended to investigate other potential causes. Here are a few things to consider:

1. Driving Habits: Changes in driving habits, such as more frequent braking or acceleration, can impact gas mileage.

2. Tire Pressure: Incorrect tire pressure can affect fuel efficiency. Make sure your tires are inflated to the recommended pressure.

3. Vehicle Alignment: Improper vehicle alignment can lead to increased rolling resistance and reduced gas mileage.

4. Engine Issues: Problems with the engine, such as faulty sensors or a malfunctioning fuel injector, could affect gas mileage.

5. Additional Weight: Carrying extra weight in your vehicle can decrease fuel efficiency.

If you're experiencing a significant drop in gas mileage, it's best to consult with a trusted mechanic or dealership to identify and address the underlying cause. They can perform diagnostics to pinpoint the issue and provide the necessary repairs or adjustments to restore optimal gas mileage.