
Mechanical hydraulic power steering systems require the use of power steering fluid. Here is some relevant information about power steering systems: 1. Power steering systems include hydraulic mechanisms and a power steering pump. Mechanical hydraulic power steering is the most common and earliest type of power steering system. The power steering pump in a mechanical hydraulic power steering system is driven by the engine. Cars equipped with this type of power steering system will have very heavy steering if the engine is not running. 2. Power steering fluid is an essential fluid in hydraulic power steering systems and needs to be replaced regularly. If the power steering fluid is not changed for a long time, it will deteriorate. Deteriorated power steering fluid can affect the normal operation of the power steering system and may even cause system failures. There are two other common types of power steering systems in cars: one is the electro-hydraulic power steering system, and the other is the electric power steering system.

I've been fixing cars for over a decade and seen it all. Mechanical hydraulic power steering systems absolutely require power steering fluid - it's essential. The hydraulic pump relies on fluid to transmit pressure, making steering wheel operation easier. Without fluid, the pump overheats, wears out quickly, and steering becomes extremely heavy, requiring significant arm strength while driving. I've seen numerous owners neglect fluid checks until leaks drained the system completely, resulting in total steering failure and safety hazards. While most modern vehicles use electric power steering (fluid-free), older cars and trucks still commonly use hydraulic systems. That's why regular fluid level and condition checks are crucial during maintenance - I recommend changing the fluid every two years or 20,000 miles to keep it fresh and clean. The reservoir is usually under the hood for easy inspection and topping up. Don't overlook this simple maintenance task to avoid costly major repairs later.

The classic car I drive has a mechanical hydraulic steering system. At first, I didn't know I needed to add power steering fluid, and the steering wheel was extremely heavy—it felt like pushing an iron plate. It wasn't until I asked a mechanic that I learned I must use power steering fluid! The hydraulic system relies entirely on the fluid for lubrication and force transmission to ensure smooth steering. Without it, the power assist disappears, making driving exhausting. Later, I learned to check the fluid myself, ensuring the reservoir is filled and the fluid remains clear. During routine maintenance, I replace the fluid, usually every three years. Compared to the convenience of electric power steering, hydraulic systems require a bit more attention, but it becomes second nature once you're used to it. For friends driving hydraulic-powered cars, remember not to skip fluid checks or let it expire—otherwise, steering issues can accelerate tire wear and affect overall performance. Simple maintenance can extend your car's lifespan and make journeys safer.

I believe safety issues should never be taken lightly. Mechanical hydraulic power steering absolutely requires power steering fluid - that's a fundamental requirement. The hydraulic system relies on fluid to provide assistance; without it, steering resistance increases dramatically, potentially causing accidents during emergency maneuvers due to operator panic. As an experienced driver, I recommend checking the fluid reservoir level monthly to prevent leaks or evaporation. If the fluid appears aged and blackened, it must be replaced to avoid clogging the pipelines. Timely maintenance isn't just about saving money - it's about preserving lives.

I often help my neighbors maintain their vehicles. The mechanical hydraulic power steering system must rely on power steering fluid to operate. The fluid's role is to reduce friction and transmit pressure, making the steering wheel turn smoothly. Maintenance advice is simple: change the fluid every two to three years and check the hoses for aging or leaks. Neglecting this can lead to reduced assistance and pump damage. Additionally, ensure the fluid type matches the specifications—avoid using generic products indiscriminately. Regular minor maintenance can prevent major repair hassles.


