What gear should a motor vehicle use when going uphill?

[BeckettLynn]

Motor vehicles require different gears when going uphill, which are mostly selected based on the uphill conditions, road conditions, weather, and other factors. Generally, automatic transmission vehicles can use the P gear, while manual transmission cars should use lower gears (second or third gear) when climbing steep slopes. High-displacement vehicles can also use third gear with increased throttle to climb, whereas small-displacement vehicles can ensure sufficient traction by using second gear. It is not advisable to use too high a gear when going uphill, as this can easily cause the engine to stall mid-climb, leading to the vehicle rolling backward and significantly increasing the risk of accidents.