Always try to maintain a __________ second following distance.

Maintaining a four to six second following distance is considered optimal for safe driving. This distance allows ample time to react to sudden changes in traffic or road conditions, such as unexpected stops by the vehicle in front of you.

This time frame provides a buffer that accommodates various factors including speed, weather conditions, and visibility. A longer following distance increases your reaction time and can significantly reduce the risk of rear-end collisions. In adverse conditions, like wet or icy roads, it becomes even more crucial to increase this distance to account for longer stopping times.

The four to six second rule is a general guideline that encourages drivers to be mindful of their speed and surroundings while ensuring they have enough time to respond appropriately in case of an emergency.