What gears are recommended for driving down steep grades?

Utilizing lower gears when driving down steep grades is essential for maintaining control and preventing brake overheating. This technique leverages the engine's natural resistance to help slow the vehicle without excessive reliance on the brakes. When you select a lower gear, engine braking comes into play, which significantly reduces the workload on your brake system. This is particularly important in combination vehicles that may carry heavy loads, as they can generate significant momentum going downhill.

By preventing brake overheating, drivers also diminish the risk of brake fade — a dangerous condition where brakes lose their effectiveness due to heat buildup. Consequently, using lower gears aligns with safe driving practices and enhances overall vehicle stability, especially on steep declines.