Moottoriöljyihin

Moottoriöljyihin, commonly referred to as engine oil in English, are vital fluids used in internal combustion engines. Their primary function is to lubricate moving parts, reducing friction and wear. This lubrication is crucial for the longevity and efficient operation of the engine.

Engine oils also play a role in cooling by absorbing heat from engine components and dissipating it. They help to clean the engine by carrying away dirt, debris, and combustion byproducts to the oil filter. Furthermore, motor oils can help seal the combustion chamber, preventing leakage between the piston rings and cylinder walls, which contributes to maintaining compression. They also protect against corrosion and rust.

The composition of motor oils varies. They can be mineral-based, synthetic, or a blend of both. Synthetic oils generally offer superior performance, especially in extreme temperatures, and provide better protection and longer drain intervals. The viscosity, or thickness, of motor oil is indicated by a number like SAE 10W-30, where the first number (e.g., 10W) represents its cold-weather performance and the second number (e.g., 30) its viscosity at operating temperature.

Regularly changing engine oil and its filter is a fundamental maintenance task for any vehicle. This ensures the oil remains effective in its protective and performance-enhancing roles, preventing premature engine damage and maintaining optimal fuel efficiency. The specific type and viscosity of motor oil required for a particular vehicle are always detailed in the owner's manual.