Should Engine Oil Be Thin or Thick?

[ReedFitz]

Engine oil tends to thicken over time. The main reasons are: 1. As time passes, the oil becomes increasingly viscous: transitioning from clear to cloudy, and the accumulation of impurities naturally increases its thickness. At its extreme, it can turn into a thick, asphalt-like consistency. 2. Oil thinning to a water-like consistency: Thinning of oil can indeed lead to excessively low oil pressure, resulting in semi-dry or dry friction between various engine components. Here is some additional information: 1. Introduction and functions: Engine oil, also known as motor lubricant, serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine. It is often referred to as the 'lifeblood' of a car. 2. Composition: Engine oil consists of base oil and additives. The base oil is the primary component of the lubricant, determining its fundamental properties, while additives compensate for and enhance the shortcomings of the base oil, imparting new characteristics. Additives are a crucial part of the lubricant.