The thermionic emission of electrons is also known as thermal electron emission. The classical example of thermionic emission is the emission of electrons from a hot cathode, into a vacuum in a vacuum tube. The hot cathode can be a metal filament, a coated metal filament, or a separate structure of metal or carbides or borides of transition metals.
Lucas Engine Oil Stop Leak is an all new formulation of Lucas additives and very specific base stocks designed to stop seal leaks in engines! Heavy Duty Oil Stabilizer Lucas Oil Stabilizer is a 100% petroleum product formulated to eliminate dry starts and reduce friction, heat and wear in any type of engine. It allows motor oils a higher degree of lubricity which reduces oil consumption and operating temperatures.
Motor Oil Grade Designations. Motor oils use a rating system developed by the Society of Automotive Engineers (SAE), to classify oil by viscosity. Viscosity is a fluid's resistance to flow. Fluids that are thin (like water) have a low viscosity, and fluids that are thick (like honey) have a high viscosity. Motor oil also changes in viscosity measurement as it is heated or cooled. Multi-grade viscosity motor oils are able to perform at a wide range of temperatures.