Which is more fuel-efficient: H4F, H4L, or L4L?

1 Answers
StCooper
07/29/25 10:38pm
H4F is the high-speed gear, suitable for normal daily use and relatively fuel-efficient. H4L is the low-speed gear, used for climbing slopes and consumes more fuel. H4F, H4L, and L4L are three modes of the four-wheel drive system. Below are the relevant introductions: Introduction to H4F: H4F is the full-time four-wheel drive mode with an open center differential, suitable for highway driving without speed restrictions and no turning limitations. It offers better handling on slightly slippery surfaces such as rain or snow. Introduction to H4L: H4L is the full-time four-wheel drive mode with the center differential locked, eliminating differential between the front and rear axles. It is not suitable for high-speed driving on paved roads but is ideal for very slippery surfaces. Steering should be gentle, and the steering wheel will feel heavy. Using this mode on insufficiently slippery surfaces can cause wear and tear on drivetrain components, damaging the vehicle, so speed should also be kept low. Introduction to L4L: L4L is the low-speed four-wheel drive mode with the center differential locked and low-speed torque amplification, providing greater torque output than L2. It is used for extrication in extreme off-road conditions but must be operated at low speeds only.
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