What does 'slow through sand or fast through sand' mean?
1 Answers
When encountering sandy roads, it is necessary to pass through as quickly as possible. This is a rule summarized by drivers based on long-term experience while driving on such surfaces. The biggest threat on sandy terrain is getting stuck. If a car slows down while passing through sand, once it stalls, the required torque becomes very high. Starting under such conditions in sand can easily lead to getting stuck deeper. The most reasonable approach is to appropriately increase the speed (avoid slamming the accelerator) and avoid slowing down or stopping before passing through. Although waterlogged sections, like sandy terrain, create resistance to driving, the main concern is water splashing into the exhaust pipe, causing the engine to stall. Therefore, driving through water should be done at a low gear and low speed. Other techniques are as follows: Low gear for climbing hills: What matters when going up or down hills is the RPM rather than the speed. If the RPM drops below 2500, climbing will become more difficult. Shifting to a lower gear midway not only saves no fuel but also increases mechanical friction. Rush red, not green: When approaching a green light, gradually reduce the speed to prepare for a sudden change to red. If it's a red light, maintain normal speed, as it is likely to turn green by the time you reach the intersection. Rear different from front: If the front wheels skid, correcting in the opposite direction is the right approach. However, if the rear wheels skid, correcting in the opposite direction will increase the skid's magnitude. The principle is simple: if the rear wheels skid to the right, turning left will cause the right side of the rear wheels to accelerate, reducing the grip on the right side and causing greater displacement. Conversely, turning right will speed up the left wheels, increasing the grip on the right side and helping the car regain direction.