Is Subaru Equipped with Full-Time 4WD or Part-Time 4WD?
2 Answers
Subaru's three models—Forester, Subaru XV, and Outback. On paper, all three adopt a full-time four-wheel-drive system. Introduction to the 4WD Structure: According to Subaru's convention, models equipped with different types of transmissions will have variations in their 4WD systems. Therefore, although all four variants of the 2014 Forester feature a full-time 4WD system, the structures of the systems used in manual and automatic transmission models are actually different. Part-Time 4WD: As the name suggests, part-time four-wheel drive allows the driver to choose between four-wheel drive (4WD) and two-wheel drive, with the switching typically done via a knob or lever. When encountering rough terrain—such as driving on slippery grass, mud, or sand—engaging 4WD mode ensures all four wheels have driving force, enhancing the vehicle's off-road capability. On highways, switching to 2WD mode allows for smoother cornering and high-speed driving. On-Demand 4WD: To some extent, on-demand 4WD is controlled by computer programs, meaning the system decides when to use 4WD or 2WD. However, if the computer fails to respond, the driver cannot manually intervene to free the vehicle. From this perspective, on-demand 4WD is merely a minor upgrade for urban SUVs, offering slightly improved off-road capability. For robust off-road performance, full-time or part-time 4WD remains the better choice.
I've always driven Subaru models, like my current Forester, which uses a full-time four-wheel drive system, commonly known as AWD. This means all four wheels are driving the vehicle at all times, giving me full confidence. Especially on rainy or snowy days or winding mountain roads, the car never slips easily, which is much better than those part-time four-wheel-drive off-road vehicles. The part-time system only engages manually at low speeds for off-roading, and usually relies on two-wheel drive. Subaru's design combines a symmetrical engine layout, ensuring even power distribution and more stable handling. The fuel consumption might be slightly higher, but the safety performance makes it worth it. I live in the north where heavy snow is common in winter, and this car has been a great help. I chose it because it's reliable, durable, suitable for daily commuting and weekend road trips, and easy to maintain—never having to worry about switching to four-wheel drive.
