Given that your Toyota Prius V’s mpg is rated at 42 combined, it is hard to imagine that you can improve your car’s fuel performance by much, but it is possible. Here are a few aftermarket parts that can help you do just that.

One easy part to install is a performance air filter from K&N. The air filters allow a more direct airflow. This increases the amount of oxygen and decreases the amount of fuel fired by each piston during combustion. That translates into a cleaner, more forceful burn that requires less gasoline; therefore, improving your Toyota Prius V mpg.

The next part should be added by someone with experience repairing cars. This is an eco-tuner or throttle controller, whichever you choose to call it. This product is a replacement for the throttle chip in you car. Blitz offers a product that features four settings based on your needs. The fuel economy setting will add to you Toyota Prius V mpg, but lowers acceleration. There are other settings that will add accelerator response, but do not offer the fuel economy.

If you install both of these parts in your car, you can improve your Toyota Prius V’s mpg by as much as 10%. While an additional 4-5 mpg does not sound overwhelming, do a little math and you will see that you can save a tank of gas per month depending on the length of your commute.