Filling a jack with oil is a necessary maintenance task that helps to keep the jack in good working condition and extend its lifespan. Jacks are essential tools for lifting vehicles, and they rely on hydraulic fluid to operate. Over time, the hydraulic fluid can become contaminated or leak out, which can lead to the jack failing. By regularly filling the jack with oil, you can help to prevent these problems and keep your jack working properly.
There are a few different types of jacks, but the most common type is the hydraulic jack. Hydraulic jacks use a piston to lift the vehicle, and the piston is powered by hydraulic fluid. The hydraulic fluid is stored in a reservoir, and when you pump the jack, the fluid is forced into the piston, which raises the vehicle.