Faced with the various hills on the road, how many gears are better and safer to use to climb a hill? Let's discuss it today.

The manual states clearly that S gear is suitable for mountainous areas because it is an automatic transmission with pulleys and steel belts that constantly reduces the diameter.The S gear has high engine speed and high torque, which makes the car powerful for climbing hills. However, if you use M gear while controlling the engine rpm, the engine rpm occasionally drops to M2 and the engine rpm rises to 4500 rpm, which makes overtaking on slopes easier.

Manual uphill

Manual uphill has to do with the gear, the speed of the car and the gradient. If the slope is relatively large, you can gear 2 or 3. For large-displacement vehicles, you can increase the throttle in 3rd gear to go uphill, and small-displacement in 2nd gear to go uphill.

When going up and down a viaduct in the city, it's steep, but the speed is at least 40km/h, so 4th and 5th gears are fine. That said, a general incline of about 15 degrees is sufficient for 2nd gear, and steep inclines, such as an underground garage, 1st gear is fine. If the grade is greater than 30 degrees, don't let off the gas completely.

Automatics

When an automatic climbs a hill, the ECU will issue a command to shift up or down according to the driving condition. When climbing a slope, the transmission frequently upshifts, i.e., the phenomenon of "dragging gears" is likely to occur, so the power output is very weak, and the engine is prone to carbon deposits. If it is a manual transmission, it can be put in manual 1st or 2nd gear, and if the vehicle has a climbing gear, it can be put in climbing gear. If it is not a manual transmission, it is OK to hang D1 or D2.

In short, when a car climbs a hill, the lower the gear, the more power the engine puts out and the better it climbs. If there is enough power, the car can continue to climb the hill by upshifting. If there is not enough power, the car can downshift to gain more capability, because the more torque you have, the more capable you are at climbing, but as much as possible, don't stall halfway up the hill.

Some people say that reverse gear and gas pedal together have the most climbing ability. I'd say the average person doesn't do that, only experienced drivers.