Look on the hoses and gaskets to find from where the fluid could be leaking. Add power steering stop leak additive to your power steering fluid. Lucas Power Steering Stop Additive is 100 percent guaranteed to stop seal leaks. In older cars, the seals shrink, causing leaks.
Diffusion is the net movement of molecules or atoms from a region of high concentration with high chemical potential to a region of low concentration with low chemical potential.
Diffusion is a widespread and important process which occurs in both living and non-living systems. 1  Simple diffusion refers to diffusion of substances without the help of transport proteins.  Facilitated diffusion refers to diffusion of substances across a cell membrane with the help of transport proteins.