6: Replace a damaged or missing spoiler to improve fuel economy
It wasn’t installed just for a sporty look, the plastic air dam (aka “spoiler”) is broken or missing. Driving without an air dam, or driving with one that is damaged, can reduce your fuel economy. Your air dam literally limits airflow under the hood by blocking airflow to the undercarriage. This allows your car to move through the air more quickly. Increasing airflow also reduces the load on a car’s electrical system, while allowing for more air to make it to the A/C condenser and radiator.