Aero Push Meaning in NASCAR

Aero push occurs when a trailing car loses front-end grip due to turbulent air. The lead car disturbs the airflow and reduces the downforce on the following vehicle. This loss of downward pressure makes the car difficult to turn through corners. Drivers often describe this feeling as the steering wheel becoming light or unresponsive. One driver failed to pass because the aero push forced the car toward the wall. Crew chiefs often adjust the front spoiler angle to regain some lost turning ability. This aerodynamic phenomenon occurs most frequently on large tracks with high sustained speeds. Proper spacing between cars helps a driver maintain enough grip to complete a pass.