What can be a consequence of using dirty headlights?

Using dirty headlights can lead to reduced distance visibility, which is a significant safety concern when driving at night or in adverse weather conditions. Dirty lenses may become clouded or obscured by grime, preventing the light from effectively illuminating the road ahead. This diminishes the driver's ability to see far into the distance, making it harder to spot hazards, navigate turns, or react to obstacles.

In addition, while significant glare for other drivers may be an issue associated with improperly aimed or dirty headlights, the primary function of headlights is to provide clear visibility for the driver. When the light cannot effectively illuminate the area ahead due to dirt, it results in reduced distance visibility, which is crucial for safe driving.

Brighter visibility at night and increased fuel consumption are not direct consequences of dirty headlights. In fact, clean headlights are necessary for optimal performance, and dirty headlights would decrease visibility rather than increase it, contradicting the notion of brightness.