Can the trunk hydraulic rod be lubricated?
2 Answers
The trunk hydraulic rod cannot be lubricated. The trunk hydraulic rod must be installed downward to reduce friction and ensure ideal damping quality and cushioning function. The trunk hydraulic rod is in a sealed space, filled with high-density liquid material, and then the air inside is removed. A piston-like component is added externally to allow the high-density liquid material to generate energy during compression. The trunk hydraulic rod is a type of elastic element that uses gas and liquid as working media. The elastic force of the hydraulic rod can be adjusted by setting different nitrogen pressures or piston rods of different diameters. Compared to mechanical springs, hydraulic rods are lighter in weight, smaller in size, and have lower motion inertia, making them more convenient for daily use. Additionally, hydraulic rods have a fast response speed, use mineral oil as the working medium, and have a long service life.
I used to think about this too - whether you can lubricate the trunk hydraulic struts really depends on the situation. My old car had this squeaking problem, and I thought the struts needed oil, so I applied some grease to them. It did smooth out for a while, but within two weeks it started sticking again. Later, a mechanic friend told me that hydraulic struts are filled with high-pressure gas inside, and external lubrication can't reach the core components. Now I've learned my lesson - if the hydraulic struts fail, I just replace them. You can buy matching models online for just a few dozen bucks, and it's as simple as tightening a couple of screws to install them yourself. What's more important is regularly cleaning the dust around the seals. When I wash my car every month, I wipe the surface of the struts with a damp cloth to at least prevent debris from getting stuck.