How often should the power steering fluid in a new car be replaced?
2 Answers
Power steering fluid, also known as steering assist fluid, generally needs to be replaced every 2 years or approximately 40,000 kilometers. Failure to replace it for an extended period can lead to damage to the power steering pump and steering gear. More details are as follows: 1. Power steering fluid is a special liquid used in the car's power steering pump. Through hydraulic action, it makes the steering wheel very light and easy to turn, similar to automatic transmission fluid, brake fluid, and shock absorber fluid. 2. Power steering is a comfort-enhancing technology in cars that automatically provides steering force when the driver turns the wheel, thereby reducing the driver's steering effort. Power steering fluid is a medium oil added to the power steering system, serving to transmit steering force and provide cushioning.
With over a decade of experience in auto repair, I've seen many steering gear failures caused by overdue fluid changes. For new cars, how often should the power steering fluid be replaced? It depends on driving habits and vehicle models. If you frequently encounter city traffic jams and make many stationary turns, it's recommended to change it every 2 years or 30,000 kilometers. For new automatic transmission vehicles with electronic power steering, manufacturer manuals may suggest 30,000-50,000 kilometers, but personally, I wouldn't exceed 3 years. Always monitor the fluid reservoir level - dropping below the minimum mark is dangerous. Some owners assume new cars don't require maintenance, only to find hydraulic valves clogged with sludge at 50,000 km, resulting in nearly 10,000 yuan steering gear repairs. Regular fluid changes prevent issues like heavy steering and abnormal noises, especially important in northern winters when fluid viscosity changes dramatically.
