In which conditions should auxiliary brake systems be used?

Auxiliary brake systems, such as engine brakes or compression brakes, are designed to provide additional braking power, particularly under demanding conditions. These systems are most effectively utilized in clear and dry conditions where traction is optimal.

In clear weather, the performance of the brake system is enhanced since the road surface provides adequate grip. This allows for better control of the vehicle during braking, reducing wear on the primary braking system and helping to maintain speed during descents. Using auxiliary brakes when the road is clear and dry can contribute to safer driving by offering more reliability and control without the risk of skidding or losing traction.

In contrast, situations that involve wet, slippery, snowy, or icy conditions can lead to reduced traction. In these instances, the use of auxiliary brakes could increase the risk of skidding, making it hazardous. Heavy traffic also requires more precise and measured braking to avoid sudden stops, which again makes auxiliary brakes less suitable in those contexts. Hence, using auxiliary brake systems in clear and dry conditions optimizes their effectiveness while maintaining safer driving practices.