What gears should be used when down-shifting while going uphill?

Using the appropriate gears while down-shifting when going uphill is essential for maintaining proper engine power and control. In this situation, beginning with the highest available gear and progressively shifting down enhances the vehicle's ability to handle the incline.

Starting with the highest gear, like Gear 3, allows the bus to maintain momentum before needing more power. As the incline increases in steepness and resistance, shifting to Gear 2 provides a balance between speed and power, allowing for more torque from the engine. Finally, if additional power is still required or if the incline becomes significantly steep, shifting down to Gear 1 will maximize the engine’s output, allowing the vehicle to ascend safely without stalling.

This progression ensures that you are effectively utilizing the power band of the engine and enhancing safety and control while navigating uphill.