Is low-range four-wheel drive 4H or 4L?
3 Answers
4L stands for low-range four-wheel drive. The transfer case has a larger gear ratio, which can amplify torque, reduce speed, and increase power. It is suitable for very harsh road conditions. Below is relevant information: Introduction: 4L stands for low-range four-wheel drive. The transfer case has a larger gear ratio, which can amplify torque, reduce speed, and increase power. It is suitable for very harsh road conditions. Recommendation: For low-traction surfaces such as ice, snow, mud, and deserts, it is not advisable to use 4L; instead, use 4H. The reason is: when starting on low-traction surfaces, the torque amplified by 4L is too large, which can cause the tires to spin and slip instantly, making it difficult to start (starting in desert areas directly digs a hole). (This is similar to starting in second gear on icy roads, where first gear won't work).
As a novice just getting into off-roading, I remember my first SUV trip to the mountains when a friend reminded me to switch to low-range four-wheel drive mode. He specifically said it was 4L, not 4H. 4L stands for Low Range, designed specifically for rugged terrain like climbing steep slopes or fording water, providing wheels with super strong torque but at very slow speeds; whereas 4H is high-range four-wheel drive, used for normal driving on general off-road surfaces. That experience left a deep impression on me—on muddy sections, using 4L got me out smoothly, whereas mistakenly using 4H would have caused the car to skid. Now before every trip, I practice switching modes, making sure to do it while parked to avoid damaging the drivetrain. Mastering this knowledge has made my road trips more reassuring, especially when sharing experiences with friends and always learning something new. I recommend beginners start with small off-road activities to gradually experience the magic of 4L, with safety as the top priority.
Having played with off-road vehicles for over a decade, I clearly know that low-range four-wheel drive is 4L, not 4H. 4L is used in low-speed, high-torque scenarios, such as towing heavy loads or climbing rocky slopes, where it increases power by reducing speed through the transfer case; 4H is more suitable for faster off-road conditions like sand. A common misconception is beginners mistakenly using 4L on paved roads, leading to differential wear—I've personally seen repair cases. Always switch modes when the vehicle is stationary, and never attempt it on highways. This experience comes from numerous outdoor adventures, helping fellow drivers avoid breakdowns—protecting your vehicle ensures the journey lasts. Understanding the benefits of 4L can enhance off-road efficiency and reduce risks, especially in harsh weather. Every switch feels like reconnecting with an old friend.
