What is the difference between 4LLc and 4HLc?

[JackRose]

4HLc stands for High-speed Four-Wheel Drive with Central Differential System, while 4LLc represents Low-speed Four-Wheel Drive with Central Differential System. Below are the detailed differences between the two: 1. 4HLc: This mode indicates High-speed Four-Wheel Drive with Central Differential System. When encountering snowy or icy road conditions, drivers should switch to this mode, which provides excellent traction and superior handling performance. In "4HLC" mode, the speed should be kept below 40 km/h. 2. 4LLc: This mode stands for Low-speed Four-Wheel Drive with Central Differential System and is designed for extremely harsh environments such as marshes or deserts. 3. Letter meanings: H stands for High-speed; L stands for Low-speed; LC represents Central Differential Lock. 4H: This denotes Four-Wheel Drive mode. When driving in rainy conditions, switching to this mode ensures stable directional performance and excellent handling. Drivers should note that in "4H" mode, the speed should be maintained below 100 km/h.

[Simon]

If you drive a four-wheel-drive vehicle like some SUVs, the main differences between 4H Lc and 4L Lc lie in speed and power. 4H Lc is my go-to for high-speed four-wheel-drive scenarios, where the locked center differential ensures all wheels rotate synchronously, providing stability on snowy or gravel roads, and maintaining speeds of 60-70 km/h with no problem. 4L Lc, on the other hand, is my lifesaver gear when I'm truly stuck. It also locks the differential but multiplies the torque several times over, making it ideal for climbing steep slopes or towing out of tough spots, though it limits speed to a crawl of 20-30 km/h. A crucial note: avoid sharp turns on paved roads in locked mode to prevent tire wear or steering issues. Choose based on road conditions: opt for 4H Lc when you need speed with traction, and 4L Lc when you require slow, powerful pushing. Using the wrong mode incorrectly could land you in serious repair trouble.

[StAngelina]

As a seasoned off-road driver with years of experience, I believe the use of 4H Lc and 4L Lc depends on the terrain. Engaging 4H Lc synchronizes the wheels tightly, allowing me to drive faster on bumpy off-road trails while preventing skidding. It maintains decent speed without holding me back. 4L Lc, on the other hand, is only activated when truly stuck, like deep in mud. It doubles the engine power to slowly crawl out, but the speed is as slow as a walk—just inching forward. Remember, locked modes prevent wheel slip, but 4H Lc prioritizes speed balance while 4L Lc focuses on power burst. Always switch back to normal mode after use to avoid drivetrain damage.

[McAriel]

In off-road situations, 4H Lc is used for terrains requiring speed and basic traction, such as shallow fords or climbing steep slopes at higher speeds; 4L Lc is the ultimate weapon when encountering major obstacles like steep slopes or deep ditches, with torque amplification providing extremely strong but slow-moving pushing power. Both modes lock the central differential to prevent slipping, but the core difference lies in speed versus power: 4H offers agility while 4L delivers brute force – avoid switching indiscriminately.