What Does a Flashing Engine Oil Light Indicate in a Sedan?

[SanJohnny]

A flashing engine oil light indicates abnormal oil pressure, typically due to low oil pressure or the need for an oil change. Low oil pressure usually means there is insufficient oil in the engine. It could also be caused by excessively high oil viscosity, leading to high oil pressure. Over time, engine oil becomes thinner, reducing its viscosity. When this happens, the oil can no longer form a stable lubricating film on engine components, accelerating engine wear. Engine oil, also known as motor oil or engine lubricant, is a substance enhanced with additives in base oil, primarily containing anti-wear additives, detergents, dispersants, and multi-grade viscosity index improvers. Engine oil is used to lubricate internal combustion engines. Its main functions are to reduce friction and wear on moving parts and to remove sludge (one of the functions of dispersants) and varnish (a function of detergents) from the engine.